Here are some iconic photos of Marines in 2017.

Marines with the 11th Marine Expeditionary Unit fire a M777 Howitzer during a fire mission in northern Syria. (Lance Cpl. Zachery Laning/Marine Corps)
Marines with the 11th Marine Expeditionary Unit fire a M777 Howitzer during a fire mission in northern Syria. (Lance Cpl. Zachery Laning/Marine Corps)
A set of MV-22B Osprey tiltrotor aircraft fly above the Pacific Ocean off the coast of Sydney, Australia, June 29. (Lance Cpl. Amy Phan/Marine Corps)
A set of MV-22B Osprey tiltrotor aircraft fly above the Pacific Ocean off the coast of Sydney, Australia, June 29. (Lance Cpl. Amy Phan/Marine Corps)
Maria Daume, who was born in a Russian prison and grew up on Long Island, New York, was one of the first women to graduate boot camp with an infantry contract. (Staff Sgt. Greg Thomas/Marine Corps)
Maria Daume, who was born in a Russian prison and grew up on Long Island, New York, was one of the first women to graduate boot camp with an infantry contract. (Staff Sgt. Greg Thomas/Marine Corps)
A Marine fires a tracer round from an M240L machine gun during a night live-fire range at Camp Shorabak, Afghanistan, June 25. (Sgt. Lucas Hopkins/Marine Corps)
A Marine fires a tracer round from an M240L machine gun during a night live-fire range at Camp Shorabak, Afghanistan, June 25. (Sgt. Lucas Hopkins/Marine Corps)
Marine vet Jeff DeYoung carries Cena, a 10-year-old black lab who was a military service dog, aboard a decommissioned Navy vessel in Michigan where he was put down July 26. Cena, who served three combat tours in Afghanistan, was diagnosed with cancer and buried with full military honors. (Joel Bissell /Muskegon Chronicle via AP)
Marine vet Jeff DeYoung carries Cena, a 10-year-old black lab who was a military service dog, aboard a decommissioned Navy vessel in Michigan where he was put down July 26. Cena, who served three combat tours in Afghanistan, was diagnosed with cancer and buried with full military honors. (Joel Bissell /Muskegon Chronicle via AP)
Marines navigate through a flooded parking lot in Houston, Texas, Aug. 31. Marine reservists assisted with rescue efforts in the wake of Hurricane Harvey, providing Zodiacs and personnel to local law enforcement. (Lance Cpl. Niles Lee/Marine Corps)
Marines navigate through a flooded parking lot in Houston, Texas, Aug. 31. Marine reservists assisted with rescue efforts in the wake of Hurricane Harvey, providing Zodiacs and personnel to local law enforcement. (Lance Cpl. Niles Lee/Marine Corps)