The Russian S-400 surface-to-air missiles pose no threat to NATO, Turkey's foreign minister said Tuesday.
Answering reporters' questions in Thailand after the 52nd foreign ministers' meeting of the Association of Southeast Asian Nations (ASEAN), Mevlüt Çavuşoğlu said: "Turkey contributes to NATO in many fields."
Since 2017, Turkey and the U.S. have been at odds over Turkey's decision to buy the S-400, a Russian-made missile defense system, and U.S. threats to break its contract to sell Turkey F-35 fighter jets over the dispute.
The U.S. claims the S-400 will be incompatible with NATO systems, an argument Turkey disputes.
NATO Secretary General Jens Stoltenberg has said that it is up to Turkey to make its own decisions on weapons systems purchases.
Cavusoglu later met with Chinese Foreign Minister Wang Yi and Thai Foreign Minister Don Pramudwinai.
He will also attend the ASEAN-Turkey Trilateral Meeting.
The meetings in Thailand will continue until August 3.
ASEAN -- a regional bloc of 10 countries including Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand and Vietnam -- was founded on Aug. 8, 1967 in Bangkok.
Turkey was granted the status of Sectoral Dialogue Partner in 2017.
