<prompt> Pedzisa mutsara unotevera: The 21st Marine Regiment yakaitwa basa pana July 14, 1942, paCamp Elliot, San Diego, California, asi chaizvoizvo yakarongwa paNew River, North Carolina. Nhengo zhinji dzokutanga dzechikwata ichi dzakabva ku6th Marine Regiment. Vakanga vagoverwa ku3rd Marine Division, zvisinei kubva munaJanuary kusvika munaJune 1943 vakanga vari regiment yakazvimirira. Munguva yehondo, chikwata ichi chakapinda muhondo yeBougainville, Hondo yeGuam Fig. 1 uye Hondo yeIwo Jima. Kutevera  <response>: Kuzviisa pasi kweJapan, 21st Marines yakaendeswa kuGuam kwavakabviswa basa musi waDecember 20, 1945. 