Sailor Signals Two sailors guide a Navy landing craft air cushion onshore for simulated disaster relief training during UNITAS LX at Ilha da Marambia, Brazil, Aug. 27, 2019. UNITAS is the world's longest running annual exercise, bringing together military forces from 11 nations. SHARE IMAGE: Download Image: Full Size (3.04 MB) Tags: Navy, Partnerships, UNITAS LX Photo By: Marine Corps Cpl. Amy Phan VIRIN: 190827-M-OP674-105.JPG Photo Gallery