People & Service

Women in Submarines - Breaking Barriers Below the Surface

The integration of women into submarine service represents one of the most significant cultural changes in naval history. From Norway's pioneering decision in 1985 to the ongoing expansion across the world's major navies, women submariners have proven that competence underwater knows no gender.

A Revolution Beneath the Waves

For most of submarine history, the underwater service was exclusively male. The reasons ranged from practical (no space for separate facilities) to medical (unfounded concerns about atmospheric effects on women) to cultural (submarines as a bastion of male military tradition). These barriers began falling in the 1980s when smaller Scandinavian navies demonstrated that mixed-gender crews worked perfectly well on submarines.

The larger navies took longer. The US Navy, the world's largest submarine force, did not allow women on submarines until 2010 - years after opening surface combatants and aviation to women. The Royal Navy followed in 2011. In each case, the decision was preceded by studies, debates, and sometimes fierce resistance from within the submarine community. And in each case, the actual integration proved far less disruptive than opponents had predicted.

Today, the consensus among navies that have integrated women is clear: gender is irrelevant to submarine performance. Women have excelled as nuclear engineers, weapons officers, sonar operators, and are advancing through the pipeline toward submarine command. The submarine force, far from being diminished by integration, has gained access to a larger talent pool and benefited from the diverse perspectives women bring to the demanding and insular world of undersea warfare.

Integration Timeline

1985

Norway

Royal Norwegian Navy becomes the first navy to allow women to serve on submarines, reflecting Norway's progressive approach to gender equality in the military.

1989

Sweden

Swedish Navy opens submarine service to women, following their broader policy of fully integrated military service.

1995

Denmark

Royal Danish Navy permits women to serve on submarines as part of comprehensive military gender integration.

1998

Australia

Royal Australian Navy opens submarine service to women. Australia's Collins-class submarines begin accepting female crew members.

2001

Canada

Canadian Forces open submarine service to women following the arrival of the Victoria-class submarines.

2003

Spain

Spanish Navy allows women to serve on submarines as part of broader military integration efforts.

2010

United States

Secretary of Defense Robert Gates announces women will be allowed to serve on US Navy submarines. The first class of female submarine officers begins training.

2011

United Kingdom

Royal Navy announces women will be allowed to serve on submarines. Ban lifted after review determined health concerns were unfounded.

2011

United States

First female officers report aboard USS Wyoming (SSBN-742) and USS Georgia (SSGN-729), making history as the first women assigned to US submarine crews.

2014

United Kingdom

First female Royal Navy officers complete submarine qualification and begin serving on Vanguard-class SSBNs.

2015

United States

All combat roles in the US military opened to women, including submarine enlisted positions.

2016

United States

First enlisted women report to submarine crews on USS Michigan (SSGN-727), expanding integration beyond officers.

2020s

Multiple

Integration continues to expand worldwide. Several navies that previously excluded women are reviewing their policies. The pipeline of experienced female submariners grows steadily.

Navy Policies Worldwide

United States

Fully integrated (officers since 2011, enlisted since 2016)
~500+ and growing

Women serve on all SSBNs, SSGNs, and an increasing number of SSNs. Integration began with larger submarines (Ohio-class) where separate berthing was more feasible, then expanded to Virginia-class SSNs. The goal is full integration across the submarine force. Female submarine officers have served as department heads and executive officers.

Submarine Classes

Ohio-class SSBN/SSGN, Virginia-class SSN (expanding)

United Kingdom

Fully integrated (since 2014)
~100+ and growing

Women serve on all classes of Royal Navy submarines including Vanguard-class SSBNs and Astute-class SSNs. Integration followed a thorough review that concluded the recycled atmosphere and radiation exposure posed no greater health risk to women than to men. The Submarine Service actively recruits women.

Submarine Classes

Vanguard-class SSBN, Astute-class SSN, Trafalgar-class SSN

Australia

Fully integrated (since 1998)
~50+ active

Australia was one of the earliest major navies to integrate women on submarines. Women have served on Collins-class submarines for over 25 years and will serve on the future AUKUS SSNs. Australia's experience has been cited as a model by other navies considering integration.

Submarine Classes

Collins-class SSK, future SSN-AUKUS

Norway

Fully integrated (since 1985)
~Proportional to small submarine fleet

As the first nation to integrate women on submarines, Norway has the longest experience. Women have served in all submarine roles including command positions. Norway's successful integration demonstrated the viability of mixed-gender submarine crews and influenced other Scandinavian nations.

Submarine Classes

Ula-class SSK, future 212CD-class

Sweden

Fully integrated (since 1989)
~Proportional to small submarine fleet

Sweden has a long history of women on submarines. The Swedish Navy's progressive policies have resulted in women serving across all submarine positions. Sweden's Gotland-class submarines, famous for their stealth capability, have had mixed-gender crews for over three decades.

Submarine Classes

Gotland-class SSK, A26-class (Blekinge-class)

Russia

Not currently integrated

The Russian Navy does not currently allow women to serve on submarines. Russian military culture has been slower to adopt gender integration in combat roles. There has been limited public discussion of changing this policy, though some Russian naval analysts have suggested it may eventually follow the Western trend.

Japan

Not currently integrated

The Japan Maritime Self-Defense Force does not currently assign women to submarine crews, though women serve in many other naval roles. Cultural factors and the compact size of Japanese submarines (limited habitability modification options) are cited as reasons. Policy discussions are ongoing.

Overcoming the Practical Challenges

The practical challenges of gender integration on submarines were real but manageable. The most frequently cited concern was habitability - providing private berthing and bathroom facilities on vessels where space is the most precious commodity. On larger submarines like the Ohio-class SSBN (with 155 crew), converting a few berthing areas and heads to female-only use was relatively straightforward. On smaller attack submarines with crews of 60-130, the modifications required more creative solutions.

Medical concerns were carefully studied and largely dismissed. Initial worries about the effects of the submarine's recycled atmosphere on female reproductive health were examined in detailed studies by the US Navy's Bureau of Medicine and the UK's Institute of Naval Medicine. Both concluded that the atmospheric conditions on modern nuclear submarines pose no greater health risk to women than to men. Radiation exposure on nuclear submarines was found to be well within safe limits for both sexes.

Pregnancy required clear policy: women who become pregnant are transferred off the submarine, as the submarine environment cannot provide prenatal care or manage complications. This policy is straightforward and has not caused the disruption some predicted. The pregnancy rate among female submariners has been comparable to or lower than that of women in other military assignments.

The most significant challenge was arguably cultural. The submarine community's identity was built around decades of all-male service, with traditions, language, and social norms shaped by that history. Integration required not just physical modifications but a cultural shift - which happened faster on some boats than others, and was driven primarily by the professionalism and competence of the first women to serve.

Pioneers and Key Figures

The First US Female Submarine Officers (2011)

Supply Officers and Engineering Officers

In November 2011, 24 female officers reported aboard USS Wyoming (SSBN-742), USS Georgia (SSGN-729), USS Maine (SSBN-741), and other Ohio-class submarines. These women completed the same rigorous submarine officer training as their male counterparts, including Nuclear Power School, and earned their submarine warfare qualifications (dolphins). Their successful integration paved the way for all subsequent female submarine assignments.

Solveig Krey (Norway)

One of the first women to serve on a Norwegian submarine

When Norway opened submarine service to women in 1985, pioneers like Krey entered a completely male-dominated world. Norwegian women submariners proved that gender was irrelevant to submarine competence, establishing a precedent that influenced navies worldwide. Norway's 40+ years of experience with integrated submarine crews is the longest track record globally.

Commander Lisa Phillips (US Navy)

First female submarine Executive Officer

Commander Phillips became the first woman to serve as Executive Officer (second-in-command) of a US Navy submarine, marking a milestone in the pipeline toward female submarine commanding officers. Her achievement demonstrated that women could advance to the most senior positions in submarine service.

First Enlisted Women Submariners (2016)

Various enlisted ratings

The integration of enlisted women on US submarines was a significant expansion beyond officers. Enlisted women faced additional challenges due to the more crowded berthing and shared facilities in enlisted spaces. Their successful integration on USS Michigan and other boats demonstrated that the model worked across all ranks and ratings.

Lieutenant Commander Maxine Stiles (Royal Navy)

Among the first female Royal Navy submarine officers

When the Royal Navy opened submarines to women in 2011, the first female officers underwent the demanding Submarine Command Course (the "Perisher") equivalent training. Their qualification demonstrated that the same rigorous standards applied regardless of gender, maintaining the Royal Navy's reputation for submarine excellence.

The Path Forward

The integration of women into submarine service is still in its early chapters. As of 2025, the first generation of female submarine officers who joined in 2011 are reaching the experience levels needed for executive officer and commanding officer billets. Within the next decade, it is likely that the first women will command US Navy and Royal Navy submarines - a milestone that will mark the full arrival of gender integration in the undersea warfare community.

The trend toward integration continues to spread globally. Navies that currently exclude women from submarines face increasing pressure to reconsider as allied navies demonstrate the viability and benefits of mixed-gender crews. The success of integration in the US, UK, Australia, and Scandinavian navies has effectively ended the debate about whether women can serve on submarines - the question is now only about when and how for the remaining holdout navies.

For the women who serve on submarines today, the pioneer period is gradually giving way to normalcy. The goal of integration was never special treatment - it was equal opportunity to serve in one of the most demanding and elite military assignments in the world. By every measure, that goal is being achieved.

Frequently Asked Questions

When did women first serve on submarines?

The first navy to integrate women into submarine crews was the Royal Norwegian Navy, which began allowing women on submarines in 1985. Sweden followed in 1989, and Australia in 1998. The US Navy announced women would serve on submarines in 2010, with the first female officers reporting aboard SSBNs in late 2011 and the first enlisted women joining submarine crews in 2016. The Royal Navy opened submarine service to women in 2011, with the first women qualifying in 2014. Each navy took a different path to integration, and the timeline reflects evolving attitudes toward gender in military service as well as practical considerations around submarine habitability and crew accommodation.

Why were women excluded from submarines for so long?

Several reasons contributed to the long exclusion of women from submarine service. The official justifications included: extremely limited privacy and habitability space making separate berthing and hygiene facilities impractical, concerns about the effects of recycled atmosphere and radiation exposure on reproductive health (studies later showed these concerns were largely unfounded for modern nuclear submarines), combat exclusion policies that barred women from direct combat roles (submarines being inherently combat platforms), and cultural resistance within the traditionally male submarine community. The practical space constraints were genuine - early submarines had no spare space for separate facilities - but as submarines grew larger and combat exclusion policies were repealed, the barriers fell.

How many women currently serve on submarines worldwide?

As of 2025, thousands of women serve on submarines across multiple navies. The US Navy leads in numbers, with women serving on all SSBN and SSGN crews and increasingly on SSN crews - the goal is full integration across the submarine force. The Royal Navy has women on all submarine classes including the Vanguard-class SSBNs. Australia, Norway, Sweden, Denmark, Canada, and Spain also have women serving on submarines. China, Russia, India, Japan, and several other navies do not currently allow women on submarines, though policies continue to evolve. The total number of women in submarine service worldwide is estimated at several hundred to over a thousand, with the number growing annually as integration expands.

What modifications were needed to accommodate women on submarines?

Physical modifications were generally modest. The primary changes included converting some berthing compartments to female-only berthing with privacy curtains or lockable doors, adding female hygiene facilities (head/bathroom modifications), installing locks on shower facilities, and adjusting uniform and equipment sizing. On larger submarines like the Ohio-class SSBN, these changes required relatively minor construction. On smaller attack submarines, the tighter spaces made accommodation more challenging. Policy modifications included updated fraternization rules, harassment prevention training, pregnancy policies (women who become pregnant are removed from submarine duty), and establishing female mentoring programs. Most navies found that the modifications required were far less extensive than initially anticipated.

Have women commanded submarines?

As of 2025, a small number of women have reached submarine command positions. Commander Lisa Phillips became the first woman to serve as executive officer (second-in-command) of a US Navy submarine in 2019. Several women have since served as department heads and executive officers on US submarines, building the pipeline toward commanding officer billets. The Royal Australian Navy has had women in senior submarine positions. Norway, as an early adopter, has had women in submarine leadership roles for decades. The path to submarine command typically takes 18-22 years of service, so the full impact of integration policies begun in 2010-2015 is still developing. The trajectory is clear: women will increasingly hold submarine command positions as the pipeline matures.

What challenges did the first women submariners face?

The first women to serve on submarines faced both professional and social challenges. Professionally, they had to prove their competence in a highly technical and physically demanding environment while under intense scrutiny - every mistake was magnified. Socially, they entered a deeply traditional, all-male culture that was not always welcoming. Resistance ranged from passive skepticism to active hostility in some cases. Practical challenges included fitting into spaces designed for larger male bodies, adapting to limited privacy, and dealing with the isolation of being one of very few women in a crew of 100+. Most early women submariners report that professional competence was the key to acceptance - once they demonstrated they could do the job, resistance diminished significantly. Many describe their submarine service as the most challenging and rewarding experience of their careers.

Continue Exploring

The people who serve on submarines face extraordinary challenges regardless of gender. Learn about crew roles and daily life, how to become a submariner, or explore the broader world of submarine operations.