Raytheon [RTN] said it has entered into an agreement with Aselsan of Ankara, Turkey for the codevelopment of a major end item for the Patriot Air and Missile Defense System.

“Aselsan is Raytheon’s first major trans-Atlantic partner selected to codevelop a Patriot major end item,” Tom Kennedy, president of Raytheon Integrated Defense Systems said in a statement. “With its track record, technical expertise and location at the crossroads of Europe and Asia, Aselsan is ideally suited to be an international Patriot supplier and help serve our 12 partner nations that have chosen the combat-proven Patriot as a key component of their air and missile defense programs.”

Under the agreement, Raytheon will subcontract to Aselsan the codevelopment of the antenna mast group for Patriot Configuration-3 systems for the United Arab Emirates.

Aselsan, working with subcontractors throughout Turkey, Europe and the U.S., will coordinate and perform the work at its Ankara facility.

Raytheon IDS is the prime contractor for both domestic and international Patriot Air and Missile Defense Systems and system integrator for Patriot Advanced Capability-3 missiles.