File:US Navy 071107-N-0775Y-002 Seabees assigned to Naval Mobile Construction Battalion (NMCB) 3 warm up with a set of jumping jacks before going on a two and a half mile march in full
Jumping jack coordination problem.
The History of the Jumping Jack - Physical Culture Study
Pin on game-miniatures
Afghanistan army soldiers doing Jumping Jacks training - YouTube
Day 1: Official Honor Guard trains local Airmen
Page 2 - Jumping Jacks High Resolution Stock Photography and Images - Alamy