Lance Cpl. Emmitt Aimino, a rifleman with Company C, 1st Battalion, 25th Marine Regiment, 4th Marine Division, secures his snow shoes during exercise Riley Xanten II, in Burwash, Ontario, Feb. 3-5, 2017. During the exercise, the Marines joined soldiers from the Canadian Armed Forces to exchange knowledge and increase proficiency in cold weather tactics, survival skills, shelter building, ice fishing, and more. - Lance Cpl. Emmitt Aimino, a rifleman with Company C, 1st Battalion, 25th Marine Regiment, 4th Marine Division, secures his snow shoes during exercise Riley Xanten II, in Burwash, Ontario, Feb. 3-5, 2017. During the exercise, the Marines joined soldiers from the Canadian Armed Forces to exchange knowledge and increase proficiency in cold weather tactics, survival skills, shelter building, ice fishing, and more.

An F-18D Hornet taxis down the flight line for a training exercise during the Marine Division Tactics Course aboard Marine Corps Air Station Beaufort, Jan. 27, 2017. One pilot and one Weapons System Operator were selected from each squadron to participate in MDTC to hone their skills in air to air tactics. The Marines are with Marine All-Weather Fighter Attack Squadron 224, Marine Aircraft Group 31. - An F-18D Hornet taxis down the flight line for a training exercise during the Marine Division Tactics Course aboard Marine Corps Air Station Beaufort, Jan. 27, 2017. One pilot and one Weapons System Operator were selected from each squadron to participate in MDTC to hone their skills in air to air tactics. The Marines are with Marine All-Weather Fighter Attack Squadron 224, Marine Aircraft Group 31.

U.S. Marine Lt. Col. Louis Simon, executive officer of the 13th Marine Expeditionary Unit, acts as the commander of troops during the opening ceremony of Exercise Iron Fist 2017, at Marine Corps Base Camp Pendleton, California, Feb. 6, 2017. Iron Fist is an annual, bilateral training exercise where U.S. and Japanese service members train together and share techniques, tactics and procedures to improve their combined operational capabilities. - U.S. Marine Lt. Col. Louis Simon, executive officer of the 13th Marine Expeditionary Unit, acts as the commander of troops during the opening ceremony of Exercise Iron Fist 2017, at Marine Corps Base Camp Pendleton, California, Feb. 6, 2017. Iron Fist is an annual, bilateral training exercise where U.S. and Japanese service members train together and share techniques, tactics and procedures to improve their combined operational capabilities.

Pfc. Jacob Maze peers through his scope during Marine Wing Support Squadron 271’s Military Operations in Urban Terrain training aboard Marine Corps Outlying Field Atlantic, N.C., Feb. 2, 2017. With corporal being the highest rank participating in the building-clearing, small unit leadership was tested with constantly shifting leadership positions. “My end goal is to ensure any of my Marines are able to take my place if the situation arises,” said Cpl. Christian Leishman, a squad leader for the exercise. Maze is an engineer equipment operator with MWSS-271, Marine Aircraft Group 14, 2nd Marine Aircraft Wing. (U.S. Marine Corps photo by Cpl. Jason Jimenez/ Released) - Pfc. Jacob Maze peers through his scope during Marine Wing Support Squadron 271’s Military Operations in Urban Terrain training aboard Marine Corps Outlying Field Atlantic, N.C., Feb. 2, 2017. With corporal being the highest rank participating in the building-clearing, small unit leadership was tested with constantly shifting leadership positions. “My end goal is to ensure any of my Marines are able to take my place if the situation arises,” said Cpl. Christian Leishman, a squad leader for the exercise. Maze is an engineer equipment operator with MWSS-271, Marine Aircraft Group 14, 2nd Marine Aircraft Wing. (U.S. Marine Corps photo by Cpl. Jason Jimenez/ Released)

Aircraft rescue and firefighting Marines with Marine Wing Support Squadron 271, Marine Aircraft Group 14, 2nd Marine Aircraft Wing, climb the stairs to the inside of a Mobile Aircraft Firefighting Training Device aboard Marine Corps Auxiliary Landing Field Bogue, N.C., Feb. 1, 2017. The training offered a realistic experience of what an aircraft fire looks and feels like. This gave the Marines a unique opportunity to evaluate themselves on how they would handle and control a real-life emergency. - Aircraft rescue and firefighting Marines with Marine Wing Support Squadron 271, Marine Aircraft Group 14, 2nd Marine Aircraft Wing, climb the stairs to the inside of a Mobile Aircraft Firefighting Training Device aboard Marine Corps Auxiliary Landing Field Bogue, N.C., Feb. 1, 2017. The training offered a realistic experience of what an aircraft fire looks and feels like. This gave the Marines a unique opportunity to evaluate themselves on how they would handle and control a real-life emergency.

A member of the Special Response Team provides security during an anti-terrorism/force protection exercise on Parris Island, S.C., Feb. 2, 2017. The exercise simulated an active shooter and hostage situation and was designed to test various aspects of the depot’s emergency response capabilities. (NOTE: Faces of certain personnel have been blurred to protect their identity.) - A member of the Special Response Team provides security during an anti-terrorism/force protection exercise on Parris Island, S.C., Feb. 2, 2017. The exercise simulated an active shooter and hostage situation and was designed to test various aspects of the depot’s emergency response capabilities. (NOTE: Faces of certain personnel have been blurred to protect their identity.)

Members of the Defense industries show equipment to Marines from Camp Pendleton during the Marine West Expo, on Marine Corps Base Camp Pendleton, Calif., Feb 1, 2017. The 2017 Marine West Exposition is a forum for defense contractors to display and promote their latest equipment and technology. - Members of the Defense industries show equipment to Marines from Camp Pendleton during the Marine West Expo, on Marine Corps Base Camp Pendleton, Calif., Feb 1, 2017. The 2017 Marine West Exposition is a forum for defense contractors to display and promote their latest equipment and technology.