U.S. Marine Corps Lance Cpl. Noah S. Scalish, (right), automatic rifleman, 2nd platoon Bravo Company, 1st Battalion, 8th Marine Regiment, Special-Purpose Marine Air-Ground Task Force-Crisis Response-Africa escorts a simulated suspect during an active shooter exercise at U.S. Embassy, Lisbon, Portugal, Feb. 9, 2016. SPMAGTF-CR-AF conducts a scaled embassy reinforcement exercise at American Embassy Lisbon in coordination with the Regional Security Office and host nation security forces in order to enhance mission essential task proficiency and build relationships. - U.S. Marine Corps Lance Cpl. Noah S. Scalish, (right), automatic rifleman, 2nd platoon Bravo Company, 1st Battalion, 8th Marine Regiment, Special-Purpose Marine Air-Ground Task Force-Crisis Response-Africa escorts a simulated suspect during an active shooter exercise at U.S. Embassy, Lisbon, Portugal, Feb. 9, 2016. SPMAGTF-CR-AF conducts a scaled embassy reinforcement exercise at American Embassy Lisbon in coordination with the Regional Security Office and host nation security forces in order to enhance mission essential task proficiency and build relationships.

A Portuguese Marine holds security at Pinheiro Da Cruz, Praia Da Raposa beach, Portugal, while participating in a combined amphibious assault exercise, Oct. 20, 2015, during Trident Juncture 15. Trident Juncture is a NATO-led exercise designed to certify NATO response forces and develop interoperability among participating NATO and partner nations. - A Portuguese Marine holds security at Pinheiro Da Cruz, Praia Da Raposa beach, Portugal, while participating in a combined amphibious assault exercise, Oct. 20, 2015, during Trident Juncture 15. Trident Juncture is a NATO-led exercise designed to certify NATO response forces and develop interoperability among participating NATO and partner nations.

An international Corps of Marines from Sweden, Finland, and the U.K. conduct amphibious assaults on a beachhead in Ravlunda, Sweden, for local media outlets during BALTOPS 2015, June 13. The amphibious forces are part of 17 NATO Allies and partner nations that are integrated in air, land, and sea operations to improve their combined-force capability to work together and to respond to threats in the Baltic region. - An international Corps of Marines from Sweden, Finland, and the U.K. conduct amphibious assaults on a beachhead in Ravlunda, Sweden, for local media outlets during BALTOPS 2015, June 13. The amphibious forces are part of 17 NATO Allies and partner nations that are integrated in air, land, and sea operations to improve their combined-force capability to work together and to respond to threats in the Baltic region.

A paratrooper approaches the landing zone after jumping out of a KC-130J from Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa during Exercise Lone Paratrooper at Leόn Air Base, Spain, May 18, 2015. A multinational force from Spain, Portugal, Brazil, Italy, France, Poland, the Netherlands, and the United States came together to conduct the exercise as a way to increase interoperability. - A paratrooper approaches the landing zone after jumping out of a KC-130J from Special-Purpose Marine Air-Ground Task Force Crisis Response-Africa during Exercise Lone Paratrooper at Leόn Air Base, Spain, May 18, 2015. A multinational force from Spain, Portugal, Brazil, Italy, France, Poland, the Netherlands, and the United States came together to conduct the exercise as a way to increase interoperability.