High-Mobility Rocket Artillery System (HIMARS ) is in operation during military exercises at Spilve Airport in Riga, Latvia, Monday, Sept. 26, 2022. U.S. leaders also have made clear that the precision weapons and rocket systems provided by the U.S. and allies — including the High-Mobility Artillery Rocket System, or HIMARS, and the High-speed Anti-Radiation Missile, or HARM — have been key to the dramatic shift in momentum. (AP Photo/Roman Koksarov)