200215-N-LW757-1415 SAN DIEGO (Feb. 15, 2020) The Lt. Dan Band performs a concert during the 21st annual Invincible Spirit Festival at Naval Medical Center San Diego (NMCSD). The Invincible Spirit Festival's mission is to celebrate the courage of wounded service members, their families and caregivers. It is an initiative from the Gary Sinise Foundation which creates and supports unique programs designed to entertain, educate, inspire, strengthen and build communities. NMCSD’s mission is to prepare service members to deploy in support of operational forces, deliver high quality healthcare services and shape the future of military medicine through education, training, and research. (U.S. Navy photo by Mass Communication Specialist Seaman Luke Cunningham/Released)