The East Africa Response Force trains in Kenya, U.S. Marines drill Down Under, USS Kearsarge sailors on deck, and more in this week's Frontline Photos.
The COVID-19 vaccine rollout across the military, soldiers and Marines participate in joint live-fire exercise and more in this week's Frontline Photos.
Recruits work together during the Crucible at Parris Island, paratroopers train in Syria, Santa appears with the Blue Angels and more in this week's Frontline Photos.