US - M119 Light Gun - Night Firing

U.S. M119 Field Gun Artillery | 105mm High Explosive - Night Fire Mission  

Source: Matsimus

Artillerymen from B Battery, 3rd Battalion, 7th Field Artillery, 25th Infantry Division Artillery conduct Operation Bull Wings Emergency Deployment Readiness Exercise (EDRE) at Pohakuloa Training Area, Hawaii, Jan. 21, 2021. 

The EDRE is a no-notice, rapid-deployment exercise designed to test a unit's ability to alert, marshal, and deploy forces and equipment to an emergency disaster or for contingency operations.