related tags: 31stmarineexpeditionaryunit 31stmeu 9A9685 9CD4D9 A59C7B ABC7CA CEF7EC D2AC88 D8EDE7 F7AC63 aav amphibiousassault amphibiousassaultvehicle cg12 cobragold2012 exercisecobragold2012 hatyao multilateralexercise th 565041 615436