A U.S. Marine MV-22 Osprey with the 22nd Marine Expeditionary Unit lands on the deck of the USS Arlington during Amphibious Squadron MEU Integration training in the Atlantic Ocean, June 15, 2018. PHIBRON-MEU Integration is a two-week training evolution that allows Sailors and U.S. Marines to train as a cohesive unit in preparation for their upcoming deployment. - A U.S. Marine MV-22 Osprey with the 22nd Marine Expeditionary Unit lands on the deck of the USS Arlington during Amphibious Squadron MEU Integration training in the Atlantic Ocean, June 15, 2018. PHIBRON-MEU Integration is a two-week training evolution that allows Sailors and U.S. Marines to train as a cohesive unit in preparation for their upcoming deployment.