S-400 missile system

A US State Department spokesperson affirmed Friday that President Joe Biden "has promised to call out Turkish behavior that is inconsistent with international law or its commitments to NATO."

The United States highly values its ties with Turkey as a strategic ally, and these relations are important for both sides, the U.S. ambassador to Ankara said on Feb. 5.

Prime Minister Kyriakos Mitsotakis has expressed renewed concern over Germany's sale of Type 214 class submarines to Turkey amid tensions with Greece.

“The S-400s are a disaster for Turkey… Purchasing them was a historic mistake”

A top Turkish official is calling on the new U.S. administration to engage in a dialogue with Turkey and to review a decision to sanction the country over its purchase of an advanced Russian air defense system.

That request comes even though Washington has made clear that there can be no waiver of the sanctions until Ankara disposes of the Russian technology.

Turkish defense Minister Hulusi Akar said it would be "very problematic" for Ankara to turn back on its purchase of Russian S-400 defense systems but expressed hope that a dispute with the United States on the issue could be resolved through dialogue.

Akar also reiterated that Turkey was in talks with Russia on obtaining a second consignment of the S400 defense systems.

Turkey will purchase an additional Russian-made S-400 air defense system, the head of Turkey's Defense Industries Administration said.

He said the acquisition of the S-400 missiles was a necessity

The US announced sanctions earlier this month to penalize Turkey over its procurement of Russia’s S-400 system under a US law known as CAATSA

Turkey and the United States have formed a joint working group to discuss sanctions that Washington imposed on its ally over its purchase of an advanced Russian air defense system, Turkey's foreign minister said Wednesday.