Strengthen Partnerships
Army South is part of a U.S. and multinational team working to advance security and stability throughout Central and South America and the Caribbean in order to protect our shared values and way of life.
Respond
Army South is ready to provide assistance to disaster situations or other emerging events.
Set the Theater
Army South works daily to integrate resources, capabilities, and activities through a whole-of-government approach alongside our U.S. and Partner Nation defense and interagency partners. Critical functions include maintaining and improving medical, logistical and engineer capabilities to ensure we are capable, resourced, and ready to rapidly deploy in response to contingency plans or natural disasters.
OPERATE
Army South pursues opportunities to counter threats from transnational criminal organizations, violent extremist organizations, and malign regional and external state actors.
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Unified in purpose: Southern Vanguard 2025 marks a milestone in regional cooperation
Unified in purpose: Southern Vanguard 2025 marks a milestone in regional cooperation

As Exercise Southern Vanguard 25 (ExSV25) concludes Aug. 29, 2025 in the Chilean Andes, a powerful message resonates across the Americas: regional unity, military cooperation, and operational readiness are stronger than ever. Led by U.S. Army South (USARSOUTH), hosted by the Chilean army and conducted in collaboration with the armies of Argentina and Peru, this year’s exercise marks a pivotal step forward in building trust, enhancing interoperability, and reinforcing a shared commitment to security and stability in the Western Hemisphere.…

Colombian army Sgt. Maj. Duan Gomez Bustamante, student at the Colombian Armed Forces Sergeants Major Academy and Programa Integral para Suboficiales de Alta Jerarquía (PISAJ) 21 participant, discusses challenges facing the Colombian military with fellow students during the PISAJ 21 culminating event at the U.S. Army Sergeants Major Academy, Fort Bliss, Texas, Aug. 21, 2025. PISAJ is a biannual, partner nation-funded initiative aligned with U.S. Southern Command’s Theater Campaign Plan and directly supports the Colombian army transformation to align its noncommissioned officer corps with globally recognized standards. (U.S. Army photo by Staff Sgt. Joshua Taeckens)
PISAJ 21 conclude after 12 days of senior NCO leadership instruction
By Staff Sgt. Joshua Taeckens | Aug. 26, 2025
FORT BLISS, Texas – The 21st iteration of the Programa Integral para Suboficiales de Alta Jerarquía (PISAJ) came to a close Aug. 22, 2025, at the U.S. Army Sergeants Major Academy (SMA-A), wrapping up nearly two weeks of
U.S. Navy Admiral Alvin Holsey, the commander of U.S Southern Command (USSOUTHCOM), speaks with Frank Abrego, the Minister of Public Security of Panama at Aeronaval Base Cristóbal Colón, Aug. 17, 2025. Holsey and Abrego visited a jungle orientation course, observing U.S. Marines being taught jungle survival skills from a combined instructor team of U.S. Army and Panamanian security institution members. (U.S. Air Force photo by Capt. Jymil Licorish)
U.S. SOUTHCOM Commander Visits Jungle Orientation Course
By U.S. Mission Panama | Aug. 20, 2025
PANAMA CITY, Panama, August 19, 2025. — U.S. Navy Adm. Alvin Holsey, commander of U.S. Southern Command (SOUTHCOM) visited Panama Aug. 17-18 to observe the combined U.S.-Panamanian Jungle Orientation Course at the Aeronaval
U.S. Army Sgt. Maj. of the Army Michael Weimer, center, speaks to Programa Integral para Suboficiales de Alta Jerarquía (PISAJ) 21 participants and facilitators from the U.S. and Colombian militaries about the roles and responsibilities of senior enlisted leaders at the U.S. Army Sergeants Major Academy at Fort Bliss, Texas, Aug. 18, 2025. PISAJ is a biannual, partner nation-funded initiative aligned with U.S. Southern Command’s Theater Campaign Plan and directly supports the Colombian army’s transformation to align its noncommissioned officer corps with globally recognized standards. (U.S. Army photo by Staff Sgt. Joshua Taeckens)
Sergeant Major of the Army underscores grit, fundamentals, and U.S.-Colombian partnership at PISAJ 21
By Sgt. Joshua Taeckens | Aug. 19, 2025
FORT BLISS, Texas – In the storied halls of the U.S. Army Sergeants Major Academy, Sgt. Maj. of the Army Michael Weimer spoke to the 21st iteration of the Programa Integral para Suboficiales de Alta Jerarquía (PISAJ) class
U.S. Army South Brig. Gen. Michael Eastridge, deputy commanding general arrives at the opening ceremony for Southern Vanguard 25 Exercise with U.S. Army, U.S. Air Force and military forces from Argentina and Peru during Exercise Southern Vanguard 25 in Los Angeles, Chile, Aug. 11, 2025. Exercise Southern Vanguard 25 underscores the U.S. Army’s enduring commitment to regional partnership as U.S. forces deploy to Chile to conduct combined mountain warfare, field, and command post training alongside Chilean forces, with participation from Argentina and Peru - strengthening interoperability, shared readiness, and mutual trust while advancing regional security and cooperation across the Western Hemisphere. (U.S. Army National Guard photo by Spc. Rosa Ibarra)
Southern Vanguard 25 kicks off in Chile, strengthening regional partnerships and readiness
By Sgt. 1st Class ShaTyra Reed-Cox | Aug. 15, 2025
LOS ÁNGELES, Chile – Exercise Southern Vanguard 25 (ExSV25), a U.S. Army South (USARSOUTH)-led multilateral training exercise with the Chilean army, officially commenced Aug. 12, 2025 in Los Ángeles, Chile.
Command Sgt. Maj. Eric Olsen, standing, U.S. Army South senior enlisted advisor, speaks to U.S. and Colombian participants of Programa Integral para Suboficiales de Alta Jerarquía (PISAJ) 21 at the South Carolina National Guard McCrady Training Center in Columbia, S.C., Aug. 11, 2025. PISAJ is a biannual, partner nation-funded initiative aligned with U.S. Southern Command’s Theater Campaign Plan and directly supports the Colombian Army’s transformation to align its noncommissioned officer corps with globally recognized standards. (U.S. Army photo by Staff Sgt. Joshua Taeckens)
U.S., Colombian armies open PISAJ 21 to advance senior NCO professional development
By Sgt. Joshua Taeckens | Aug. 12, 2025
COLUMBIA, S.C. – U.S. Army South (USARSOUTH), in coordination with the Colombian army, officially launched the 21st iteration of the Programa Integral para Suboficiales de Alta Jerarquía (PISAJ), the capstone event of the
U.S. Army Chief Warrant Officer 4 Alexander Fraire, middle, senior geospatial warrant officer with the 512th Geospatial Engineering Detachment, Headquarters and Headquarters Battalion, U.S. Army South, demonstrates and explains the geospatial data capturing platform used by his unit during a combined geospatial subject matter expert exchange (SMEE) at Fort Sam Houston, Texas, July 23, 2025. The SMEE, hosted by 512th Geospatial Engineer Detachment, Headquarters and Headquarters Battalion, U.S. Army South, focused on building interoperability and partner capacity in geospatial engineering. (U.S. Army photo by Sgt. Joshua Taeckens)
Geospatial collaboration strengthens security cooperation in Western Hemisphere
By Sgt. Joshua Taeckens | July 28, 2025
FORT SAM HOUSTON, Texas – Soldiers from the U.S. Army South (USARSOUTH) conducted a geospatial subject matter expert exchange (SMEE) with members of the Colombian and Peruvian armies, July 22-24, as part of an agreed-to
U.S. Army Maj. Gen. Phil Ryan, left, the U.S. Army South (USARSOUTH) ceremonially welcomes Chilean army Maj. Gen. Eduardo Valdivia, the incoming deputy commanding general – interoperability, during a patching ceremony in the unit’s Daniel Van Voorhis Conference Room at Fort Sam Houston, Texas, April 22, 2022. The patching ceremony is a tradition meant to welcome incoming leaders to USARSOUTH. (U.S. Army photo by Sgt. 1st Class ShaTyra Cox)
Meet Maj. Gen. Eduardo Valdivia, Army South’s new Deputy Commanding General - Interoperability
By Sgt. 1st Class ShaTyra Reed-Cox | June 10, 2025
FORT SAM HOUSTON, Texas — U.S. Army South (USARSOUTH) ushered in a new chapter of leadership with the appointment of Chilean army Maj. Gen. Eduardo Valdivia as Deputy Commanding General - Interoperability (DCG-I), bringing
Distinguished guests and students attend the Programa Integral para Suboficiales de Alta Jerarquia 20 (PISAJ-20) closing ceremony at Fort Sill, Okla., May 16, 2025. PISAJ is a geo-strategic semiannual military engagement focused on developing, advancing, and professionalizing the COLAR senior NCO corps. (U.S. Army photo by Sgt. Maj. Juan C. Munoz) (Photo Credit: Sgt. Maj. Juan Munoz)
US, Colombian army leaders conclude PISAJ-20 and increase NCO operational reach
By Sgt. Maj. Juan C. Munoz | May 20, 2025
FORT SILL, Okla. – 30 Colombian army and one Brazilian army sergeants major concluded the capstone of the Programa Integral para Suboficiales de Alta Jerarquía 20 (PISAJ-20), here, May 16.The joint military program is
U.S. Navy Adm. Alvin Holsey, commander of U.S. Southern Command (USSOUTHCOM), provides remarks at the TRADEWINDS 25 (TW25) closing ceremony at Teteron Barracks in Teteron Bay, Trinidad and Tobago, May 8, 2025. TW25 is a USSOUTHCOM-sponsored and Chairman of the Joint Chiefs of Staff-approved annual exercise that bolsters regional stability and demonstrates U.S. Joint Force coordination and interoperability with Allies and partners. (U.S. Army National Guard photo by Spc Astia LeBron) (Spc. Astia LeBron)
Regional resilience and unity on display in the Caribbean as TRADEWINDS 25 comes to a close
By Sgt. Joshua Taeckens | May 12, 2025
TETERON BAY, Trinidad and Tobago – U.S. Southern Command Commander Adm. Alvin Holsey praised the strength of international cooperation as the 40th iteration of TRADEWINDS 25 (TW25) concluded May 8, following two weeks of
U.S. Command Sgt. Maj. Eric Olsen, the U.S. Army South senior enlisted leader, participates in a discussion during an organizational leadership panel in the Western Hemisphere Institute for Security Cooperation auditorium at Fort Benning, Ga., during the Programa Integral para Suboficiales de Alta Jerarquía (PISAJ-20), May 5, 2025. PISAJ is a geo-strategic semiannual military engagement focused on developing, advancing, and professionalizing the Colombian army senior NCO corps. (U.S. Army photo by Sgt. First Class ShaTyra Cox) (Photo Credit: Sgt. 1st Class ShaTyra Reed-Cox)
US, Colombian armies leaders discuss importance of communication, mentorship, building the next generation during PISAJ-20
By Sgt. 1st Class ShaTyra Reed-Cox | May 8, 2025
FORT BENNING, Ga. – As part of the ongoing Programa Integral para Suboficiales de Alta Jerarquía 20 (PISAJ-20) capstone, senior enlisted leaders from across U.S. and Colombian armies gathered for an organizational leadership
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