U.S. Army mortar teams conduct a live fire mission from M1129 Mortar Carriers. At the end of the training exercise, the U.S. Soldiers invited Polish mortar-men to .\rbr\rbrU.S. Army mortar teams conduct a live fire mission from M1129 Mortar Carriers. At the end of the training exercise, the U.S. Soldiers invited Polish mortar-men to .\rbr\rbrU.S. Army mortar teams conduct a live fire mission from M1129 Mortar Carriers. At the end of the training exercise, the U.S. Soldiers invited Polish mortar-men to .