Multiple 155mm rounds are displayed during a 155mm howitzer live-fire exercise in Iraq in 2020. (Derek Mustard/U.S. Army)

WASHINGTON — The U.S. is providing another $1.7 billion in military aid for Ukraine’s war effort, including air-defense interceptors, anti-tank weapons and munitions, the Pentagon announced Monday.

Up to $200 million will be provided through the presidential drawdown authority, which means equipment is pulled from existing U.S. military stocks and sent to Ukraine on an emergency basis.

About $1.5 billion will be provided through the Ukraine Security Assistance Initiative, which gives long-term aid to procure weapons and munitions from the defense industry or partner countries for a later time. This includes capabilities to augment Ukraine’s air defense and anti-tank weapons, as well as funding to sustain equipment previously committed by the United States.

The U.S. has provided about $55.4 billion in military aid to Ukraine since Russian forces invaded in February 2022.

The latest announcement comes after the Pentagon discovered another $2 billion in accounting errors that would allow the U.S. to provide more aid to Ukraine, the GAO reported last week. The department last year discovered it overestimated the value of the weapons and equipment sent to Ukraine by $6.2 billion.

The items in the military aid announced Monday include:

• Munitions for National Advanced Surface-to-Air Missile Systems.

• Short- and medium-range air defense munitions.

• Missiles for air defense.

• Electronic warfare equipment.

• Ammunition for High Mobility Artillery Rocket Systems.

• 155mm and 105mm artillery rounds.

• 120mm mortar rounds.

• Precision aerial munitions.

• Tube-launched, optically tracked, wire-guided missiles.

• Javelin and AT-4 anti-armor systems.

• Small arms.

• Explosives material and demolitions equipment and munitions.

• Secure communications systems.

• Commercial satellite imagery services.

• Spare parts, maintenance and sustainment support, and other ancillary equipment.