The U.S. Army has awarded Aerovironment a contract worth up to $990 million to provide Switchblade loitering munitions for infantry battalions, according to a Pentagon announcement posted Tuesday evening.

The Defense Department announced the contract to supply “an organic, stand-off capability to dismounted infantry formations capable of destroying tanks, light armored vehicles, hardened targets, defilade and personnel targets.”

Funding will be determined with each order and the Pentagon estimates the work will be completed in five years.

Aerovironment said in a statement Wednesday it expects to begin delivering systems to the Army “in months.”

The contract fulfills the service’s directed requirement for loitering munitions for soldiers in infantry battalions, the company said.

Switchblades are tube-launched munitions with small wings that pop out like a switchblade knife when ejected and can be flown like drones. They are designed to hit targets and detonate.

The Army has used the Switchblade for more than a decade, but as the systems have been sent to Ukraine and used with great success by the Ukrainian Armed Forces, the service has recognized its broader utility within its own force.