Isabelo Rivera


Isabelo Rivera Negrón was the 21st Puerto Rico Adjutant General, and the commanding officer of the Puerto Rico National Guard.

Early years and education

BG Isabelo Rivera was born in Las Piedras, Puerto Rico. Has a BA in economics from the University of Puerto Rico, Río Piedras Campus, MBA in Management from the Metropolitan University of Puerto Rico and a juris doctor from the Interamerican University of Puerto Rico School of Law. Also attended the Inter-American Defense College at Fort Lesley J. McNair, Resident Senior Service College Dual Status Commanders Course and the Joint Task Force Commanders Course.

National Guard career

Commissioned as a 2nd lieutenant thru the ROTC program on June 7th 1976 in the Puerto Rico National Guard. His first assignment was as an Assistant Finance Officer, Alpha Company, 192d Support Battalion, Puerto Rico Army National Guard in San Juan, Puerto Rico. Certified Defense Financial Manager American Association of Military Comptrollers. Was appointed Adjutant General for the Puerto Rico National Guard on January 17, 2017, by Puerto Rico Governor Ricardo Rosselló. During his tenure as Adjutant General of the Puerto Rico National Guard, BG Isabelo Rivera led the PRNG during the recovery relief efforts after the path of Hurricane Maria thru Puerto Rico. BG Isabelo Rivera resigned the position as Puerto Rico Adjutant General to retire after 42 years of military service.

Effective dates of promotions