Troop Travel U.S. and Brazilian troops prepare to conduct the final event of Southern Vanguard in Oiapoque, Brazil, Nov. 15, 2023. Southern Vanguard is an annual bilateral exercise which rotates between partner nations in the U.S. Southern Command area of responsibility. SHARE: Download: Full Size (3.57 MB) Tags: Brazil, Exercises, partnerships, Southern Command, Army, Southern Vanguard Credit: Army Spc. Joseph Liggio VIRIN: 231115-Z-EL715-1114M.JPG Photo Gallery