Kammala wannan jumla: Shekarar 1942 ta zama lokacin karewa ga Pacific Theater, kuma a matsayin irin wannan, batutuwa na kare kariya na Marine sun ga yawancin ƙarfafawa, sake sakewa, da girma. Ranar 4 ga watan Yuni, Marines a Midway Island ya kare wani harin iska na Japan, wanda ya taimaka wajen nasarar da aka samu a cikin
yaƙi na teku daruruwan mil daga nan. A ranar 7 ga watan Agusta, Battalion na Tsaro na 3 ya sauka tare da sojan sama zuwa Guadalcanal kuma ya kare tsibirin (da wasu a cikin tsibirin Solomon) daga hare-haren Japan a lokacin yakin Guadalcanal.