Southern Vanguard U.S. and Brazilian soldiers sail during Exercise Southern Vanguard in Oiapoque, Brazil, Nov. 12, 2023. The annual exercise increases interoperability between the two nations’ armies. SHARE: Download: Full Size (1.34 MB) Tags: Army, Brazil, southern command Credit: Army National Guard Spc. Joseph Liggio VIRIN: 231112-Z-EL715-1630Y.JPG Photo Gallery