Self-Defense Focus Navy Petty Officer 1st Class Jamie Wolfe practices self-defense techniques taught by Marine Corps martial arts instructors aboard the USS Germantown in the South China Sea, Nov. 29, 2019. SHARE: Download: Full Size (1.53 MB) Tags: marine corps, navy, indo-pacific Credit: Navy Petty Officer 1st Class Toni Burton VIRIN: 191129-N-QD718-2037Y.JPG Photo Gallery