 The 130th Engineers had a variety of reconstruction tasks during their second tour in Iraq . The top priority of the brigade was to " maintain and upgrade lines of communications " to " <unk> uninterrupted ground movement through the area of operations . " This duty also included detection and removal of <unk> <unk> <unk> . The brigade undertook numerous construction projects , primarily in building coalition forward operating bases , but they were tasked with construction projects for the Iraqi army and civilians as well . Many of the units of the brigade were integrated with military from other branches for projects . US Navy and US Marine Corps engineers operated side @-@ by @-@ side with 130th Engineer Brigade soldiers , and though commanders reported a " culture clash " between different branches of service , the soldiers , sailors , and Marines were able to adapt to the situation quickly . 
