Were it not for the navajos, the marines would never have taken iwo jima." - major howard connor, 5th marine division which statement best describes how the navajos impacted the battle at iwo jima? a) navajo marine battalions were solely responsible for the charge up iwo jima that won the battle. b) navajos were primarily responsible for resupplying marines during the siege that took place after the invasion. c) navajo army air force units led bombing raids on japanese airfields that allowed u. s. troops to storm the island. d) navajos sent vital messages using their native language that communication between u. s. troops during the invasion.