Turkey had procured the S-400 missile defence systems from Russia after talks with the US on its American Patriot defence systems had broken down.
Lieutenant Colonel Mike Andrews, a US Defense Department spokesman, said a decision had been made in late 2019 "to honour existing contractual arrangements and accept delivery of parts that were already on contract."
President Trump, who made the remarks during an interview with Fox Business Network’s Maria Bartiromo, said the US makes parts for F-35 jet all over the world and cited challenges of global cooperation.
Budgetary failures, political deadlock, technology goof-ups, and internal schisms are all standing in the way of Israel’s latest military plan.
US President refuses to endorse bill, which angered Turkey, and exposed rifts between the White House and US lawmakers.
Turkey and Russia pledge to continue cooperation in the military and energy spheres as well as in Syria.
Turkey hits back at the latest sanctions threats from the US, we take a look at how US-Turkish relations have changed over the decades.
Foreign Minister Mevlut Cavusoglu said more missile systems are essential for Turkey's security and despite the purchase of Russian S-400s, Ankara is open to buying US-made Patriots.
Turkish Defence Minister Hulusi Akar said Turkey would have to look for alternatives if it could not acquire US F-35 jets over the purchase of the advanced Russian S-400 air-defence system.
The Russian-made defence hardware will be activated after relevant military personnel are trained, says Turkish defence minister.
Ankara is not only an F-35 fighter jet customer but also a partner, Turkish President Erdogan underlined at a Justice and Development Party's parliamentary meeting.
Talks being held at the bilateral level and not under NATO supervision, Turkish presidential spokesman Ibrahim Kalin says.
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