There are more than 130 000 US veterans and more than 12 500 active-duty service members who identify as transgender. Lack of training in transgender and gender-affirming care among healthcare providers in the military is still reported. The article aims to explore and advocate for the unique role of advanced practice registered nurses, especially clinical nurse specialists, in providing culturally sensitive and evidence-based care to the transgender population within the US military. The clinical nurse specialists' pivotal role in policy advocacy and translation of evidence to improve the quality of care and patient outcomes for transgender service members is highlighted. The article also explores the historical journey of transgender care in the US military, addressing discriminatory policies and the implications of the ever-evolving regulations in military transgender healthcare. The article aims to create awareness of clinical nurse specialist utilization in US military healthcare services to improve the care of transgender individuals in the military. The uncertain future for transgender service members highlights the ongoing commitment needed to navigate complex military healthcare policies and foster inclusive, evidence-based practices. Therefore, the clinical nurse specialist plays a pivotal role in shaping the future of transgender healthcare within the US military.