Service members from across the nation receive a brief at Ponce, Puerto Rico, April 26, 2019, during Innovative Readiness Training Puerto Rico. Marine Forces Reserve Sailors are working jointly with several National Guard and Reserve units from across the nation to provide medical care in Puerto Rico during a two-week medical exercise. - Service members from across the nation receive a brief at Ponce, Puerto Rico, April 26, 2019, during Innovative Readiness Training Puerto Rico. Marine Forces Reserve Sailors are working jointly with several National Guard and Reserve units from across the nation to provide medical care in Puerto Rico during a two-week medical exercise.