The 143rd Field Artillery Regiment is a combat arms regiment of the United States Army made up of soldiers from the California Army National Guard. Only the regiment's first battalion, a Composite fires battalion, equipped with M119A3 and M777A2 Howitzers, is still active. The 1st Battalion, 143rd Field Artillery's current mission is to shoot safely, accurately, and quickly in direct support of the 79th Infantry Brigade Combat Team. Furthermore, the battalion trains to deploy, fight, and win on the battlefield and respond effectively to any state emergency.