sentence: units operational units of tenth air force are : combat air forces regional support groups space forces pilot training forces command/control forces tenth air force squadrons , flights , and operational locations are also stationed at : hickam air force base , hawaii holloman air force base , new mexico langley air force base , virginia march arb , california moody air force base , georgia offut air force base , nebraska portland iap , oregon sheppard air force base , texas vandenberg air force base , california beale air force base , california history world war ii 10th air force usaaf emblem tenth air force was constituted on 4 february 1942 and activated on 12 february , built up around a nucleus of air force personnel newly arrived from java and the philippines , under the command of maj. gen. lewis h. brereton .