Improved Ribbon Bridges are a mobility marvel for the Army, allowing troops to move 70-ton tanks across large rivers of flowing water and take the fight to the bad dudes on the other side.
The IRB is a pontoon bridge that is put in place by multirole bridge companies. The MRBCs use small bridge erection boats to navigate the rivers and position the structure.
(Photo: Gung Ho Vids)
Watch engineers deploy the bridge and wave tanks across in the video below.