American tankers were slightly late to the armored game, historically. Britain first rolled out the tank in the Battle of the Somme in 1916, before America even joined the war. In fact, America wasn't even able to get its first tank, the M1917, to production in time to fight in World War I.
But America came roaring back in World War II with pioneers of armored doctrine, including the first American tank officer, George S. Patton. Since then, tanks have had a respected place in the pantheon of American combat arms. Today, tankers drive the M1 Abrams tanks into battle. Here's what makes them so lethal.
U.S. Soldiers with the 2nd Battalion, 7th Infantry Regiment, 1st Armored Brigade Combat Team, 3rd Infantry Division, fire an M1A2 SEPv2 Abrams Main Battle Tank during exercise Combined Resolve VII at the 7th Army Training Command in Grafenwoehr, Germany, Aug. 18, 2016. (Photo: U.S. Army Visual Information Specialist Markus Rauchenberger)
Abrams tanks are highly mobile, capable of propelling themselves at speeds of over 40 mph despite their approximately 68 short tons of weight. That weight goes even higher if the tank is equipped with protection kits like the Tank Urban Survival Kit (TUSK).
M1A2 Abrams Main Battle Tanks move to engage targets during a joint combined arms live-fire exercise near Camp Buehring, Kuwait Dec. 6-7, 2016. (Photo: U.S. Army Sgt. Aaron Ellerman)
Once it gets within range of its target, the Abrams crew can fire their 120mm smoothbore cannon, the M256A1. The cannon can use a variety of ammunition including high-explosive, anti-tank (HEAT) ammo; canister rounds that are basically tank-sized shotgun shells; and sabot rounds, depleted uranium darts that shoot through armor and turn into a fast-moving cloud of razor-sharp, white-hot bits of metal inside the enemy tank.
Marines with 1st Tank Battalion fire the M1A1 Abrams tank during the 11th Annual Tank Gunnery Competition at Range 500, Feb. 20, 2016. The competition was divided into six segments to test the skills of the tank crewmen. (Photo: U.S. Marine Corps Cpl. Ali Azimi)
These tank rounds make short work of most enemy tanks, but they're also heavy. Loaders have to move them from storage racks to the gun by hand, and each round weighs between 40 and 51 pounds.
A pallet full of 120mm rounds sit waiting to be loaded and fired from the M1A2 tanks during gunnery. Considering that just one 120mm round weighs roughly 50 pounds, an entire 14-tank company is a force to be reckoned with. (Photo: U.S. Army Staff Sgt. Leah Kilpatrick)
The tanks can fire canister or other rounds to destroy enemy infantry and light vehicles, but they can also turn to their mounted machine guns. The Abrams has a .50-cal machine gun and two 7.62mm machine guns.
Command Sgt. Maj. Eric C. Dostie, U.S. Army Central senior noncommissioned officer, fires a M2A1 .50 Caliber Machine Gun with a Soldier from the 3rd Armored Brigade Combat Team, 1st Armored Division, during a visit to Camp Buehring, Kuwait Oct. 18, 2016. (Photo: U.S. Army Sgt. Aaron Ellerman)
While Abrams can survive open warfare, crews prefer to hide and maneuver their tanks into better position as often as possible to protect the tank from enemy infantry, armor, and air assets. Covering the tank in local camouflage is a good first step, and using the terrain to mask movement is important as well.
An M1 Abrams Tank emerges out of wooded terrain after Soldiers assigned to 1st Battalion, 68th Armor Regiment, 3rd Armored Brigade, 4th Infantry Division had concealed it to blend in with surrounding environment, Jan 20, at Presidential Range in Swietozow, Poland. (Photo: U.S. Army Staff Sgt. Elizabeth Tarr)
Concealment is tricky in a tank, but it increases survivability and allows the tanks to conduct ambushes.
Soldiers assigned to 1st Battalion, 68th Armor Regiment, 3rd Armored Brigade, 4th Infantry Division sit in an M1 Abrams Tank after concealing it in wooded terrain, Jan 20, at Presidential Range in Swietozow, Poland. (Photo: U.S. Army Staff Sgt. Elizabeth Tarr)
Abrams tanks were originally produced in 1978, but they've been modernized many times since then to keep them as capable as possible. The M1A1 rolled off in 1985 and the M1A2 in 1986. Now, upgrade kits like the TUSK or the System Enhancement Packages (SEP) improve M1A2s' capabilities.
The Abrams Integrated Display and Targeting System, or AIDATS, upgrades the thermal and day sights on the stabilized commander's weapon station through a state-of-the-art, high definition camera, and permanently mounted color display. (U.S. Marine Corps photo)
Army and Marine Corps logistics officers have to work hard to ensure the heavy tanks can always be deployed where they are needed. While Abrams can be airlifted, its much cheaper to ship them by boat.
An M1A2 Abrams tank from 1st Battalion, 68th Armor Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division, sits on the dock after being off-loaded from a cargo vessel at the port of Bremerhaven, Germany, Jan. 6, 2017. (Photo: U.S. Army Capt. Scott Walters)
When it would be dangerous or too expensive to drive the tanks to their objective, they can be loaded onto trains or special trucks for delivery.
Sgt. Arnulfo Ramos, an M1A2 Abrams tank crewman for Company Bravo, 1st Battalion, 66th Armor Regiment, 3rd Armored Brigade Combat Team, 4th Infantry Division, secures the chains on a tank after it was loaded on to a rail car at Fort Carson, Colorado, Nov. 15, 2016. (Photo: U.S. Army Ange Desinor)
But the most impressive way to deliver an Abrams is still definitely driving it off a plane.
(Photo: U.S. Army Staff Sgt. Richard Wrigley)
The tanks can operate in most environments, everything from snow-covered plains...
An M1A2 Abrams Tanks belonging to 1st Battalion, 68th Armored Regiment, 3rd Armored Brigade, 4th Infantry Division fires off a round Jan. 26, 2017 in Trzebien, Poland. (Photo: U.S. Marine Corps Staff Sgt. Corinna Baltos)
...to scrub-covered plains...
Marines with Company A, 4th Tank Battalion, 4th Marine Division, Marine Forces Reserve, fire a M1A1 Abrams Main Battle Tank during their annual training at Marine Corps Base Camp Pendleton, Calif., July 19, 2016. Marines fired the tanks to adjust their battle sight zero before the main event of their annual training. (Photo: U.S. Marine Corps Cpl. Gabrielle Quire)
...to sandy deserts.
An M1A2 Abrams Main Battle Tank fires suppressive rounds at targets during Hammer Strike, a brigade level live-fire exercise conducted by the 3rd Armored Brigade Combat Team, 3rd Infantry Division, at the Udairi Range Complex near Camp Buehring, Kuwait. (Photo: U.S. Army Sgt. Christopher Johnston)
To make sure they can always get to the target, tank units sometimes bring specially equipped engineers with them. The Assault Breacher Vehicle is built on the M1 chassis but features a number of tools for breaking through enemy obstacles rather than a large number of offensive weapons.
An Assault Breacher Vehicle with 2nd Combat Engineer Battalion, 2nd Marine Division, idles in the Black Top Training Area aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., May 17, 2016. (Photo: Marine Corps Lance Cpl. Levi Schultz)
The front of the breacher is a plow that can cut through enemy berms, creating a path for tanks.
An Assault Breacher Vehicle drives through a lane in a berm during breaching exercises aboard Marine Corps Base Camp Lejeune, North Carolina, Dec. 8, 2016. Marines with 2nd Tank Battalion along with 2nd CEB worked together to conduct breaching exercises in which they provided support fire while Assault Breacher Vehicles eliminated tank pits and created a lane in which tanks may safely travel, aboard Camp Lejeune, Dec. 8-10, 2016. (Photo: U.S. Marine Corps Lance Cpl. Preston McDonald)
The main purpose of the plow is to scoop up and either detonate or remove enemy mines. Mines that don't go off are channeles to the sides of the path, creating a clear lane for following tanks.
An Assault Breacher Vehicle uses its mine plow in order to scan the surrounding area for potential threats during breaching exercises aboard Marine Corps Base Camp Lejeune, North Carolina, Dec. 8, 2016. Marines with 2nd ank Battalion along with 2nd CEB worked together to conduct breaching exercises in which they provided support fire while Assault Breacher Vehicles eliminated tank pits and created a lane in which tanks may safely travel, aboard Camp Lejeune, Dec. 8-10, 2016. (Photo: U.S. Marine Corps Lance Cpl. Preston McDonald)
The breacher vehicles can quickly create a lane through IEDs by firing one of their Mine-Clearing Line Charges, a rocket-towed rope of explosive cord that explodes approximately 7,000 pounds of C4, triggering IEDs and mines.
A U.S. Marine Corps Assault Breacher Vehicle (ABV) assigned to 1st Combat Engineer Battalion (CEB) launches a Mine Clearing Line Charge (MCLC) on range 600 at Camp Pendleton, Calif., Feb. 20, 2015. Armed with approximately 7,000 pounds of C4 explosives and a mine resistant Titanium-plated undercarriage, the ABV ensures Marines can maneuver on the battlefield despite enemy minefields. (Photo: U.S. Marine Corps Warrant Officer Wade Spradlin)
The M1 Abrams is still a titan of the battlefield, allowing tankers to be some of the most lethal soldiers and Marines in any conflict.
Marines from Company C, 1st Tank Battalion, prepare their tank for the day's attack on Range 210 Dec. 11, 2012, during Steel Knight 13. (Photo: U.S. Marine Corps Lance Cpl. D. J. Wu)