The United States has approved a possible foreign military sale to NATO worth an estimated $136.1 million to extend Stinger missiles' service life, according to the U.S. Defense Security Cooperation Agency on Thursday.

Upon requests by the NATO Support and Procurement Agency, which manages the Stinger Service Life Extension Program on behalf of Germany, Italy and the Netherlands, the administration of U.S. President Donald Trump has agreed to supply additional booster pellets, flight motors, gas generator cartridges, Stinger warhead sections, and U.S. government and contractor technical, engineering, and other relevant support.

Following approval, the military sale will be valued at $136.1 million, which was previously $50.7 million.

"This proposed sale will contribute to U.S. and NATO defense goals by increasing readiness and enhancing the air defense capabilities of NATO Allies. Germany, Italy and the Netherlands will have no difficulty absorbing this equipment into their armed forces," said the U.S. Defense Security Cooperation Agency in a statement.

The Stinger missile is a lightweight, self-contained air defense system that can be rapidly deployed by ground troops, according to Raytheon, the U.S. defense firm that produces the missile.

(With input from Xinhua)