Soldiers of the Sea is a 1939 RKO-Pathe News two-reeler short subject narrative featuring the U.S. Marine Corps.
Many sequences of the film were used in RKO's Victor McLaglen and Edmund Lowe's 1941 comedy Call Out the Marines.
Recruit Training and the Sea School of the Marines are shown along with sequences of rowing whaleboats, foot drill and bayonet fighting conducted by Lieutenant Colonel Anthony J. Drexel Biddle.
United States Marine Corps Aviation is featured with scenes of the VMF-2 squadron of Grumman F3F biplanes accompanied by narration of its increasing role and importance after the years.
In addition to their portable 75mm M116 howitzers, the landing force has communications specialists calling for Naval gunfire support from offshore ships as well as the onshore artillery by radio and flag semaphore.