Sergeant Rosa M. Quintero, administrative specialist with I Marine Expeditionary Force Headquarters Group (Forward), was surprised Christmas day aboard Camp Leatherneck, Afghanistan, with a phone call from President Barack Obama. The Mexico-born, Texas-raised Marine has worked hard her entire life, overcoming all obstacles in her way to persevere and excel ahead of her peers. - Sergeant Rosa M. Quintero, administrative specialist with I Marine Expeditionary Force Headquarters Group (Forward), was surprised Christmas day aboard Camp Leatherneck, Afghanistan, with a phone call from President Barack Obama. The Mexico-born, Texas-raised Marine has worked hard her entire life, overcoming all obstacles in her way to persevere and excel ahead of her peers.