WASHINGTON (REUTERS) - The United States imposed long-anticipated sanctions on Turkey on Monday (Dec 14) over Ankara's acquisition of the Russian S-400 air defence systems, further complicating already strained ties between the two Nato allies.
Turkey condemned the sanctions as a "grave mistake" and urged Washington to revise its "unjust decision."
Senior US officials said in a call with reporters that Ankara's purchase of the S-400s and its refusal to reverse its decision left the United States with no other choice.
The sanctions, first reported by Reuters last week, target Turkey's top defence procurement and development body Presidency of Defence Industries, its chairman Ismail Demir and three other employees.
While limited to one company, they are still likely to weigh on the Turkish economy, analysts said, at a time when it is struggling with a coronavirus-induced slowdown and double-digit inflation.
Ankara acquired the Russian S-400 ground-to-air defences in mid-2019 and says they pose no threat to its allies in the Nato military alliance. But Washington has long threatened sanctions and last year removed Turkey from an F-35 jet programme.
Ignoring the advice of aides, President Donald Trump had resisted imposing penalties on Turkey until giving the green light several days ago, sources familiar with the matter said.
"The United States made clear to Turkey at the highest levels and on numerous occasions that its purchase of the S-400 system would endanger the security of US military technology and personnel and provide substantial funds to Russia's defence sector," US Secretary of State Mike Pompeo said.
Briefing reporters, Christopher Ford, Assistant Secretary of State for International Security and Nonproliferation, said Washington had sought a solution but Ankara rejected all offers.
"This is not a step we've taken lightly or certainly quickly," he said.
The US measures, announced under the Countering America's Adversaries Through Sanctions Act (CAATSA) near the end of Trump's presidency, are likely to weigh on Ankara's ties with Democrat Joe Biden's administration when he takes over as president next month.
Shortly before the announcement, Turkish President Tayyip Erdogan said US sanctions rhetoric was upsetting. "From our Nato ally the United States, we expect support in our battle against terrorist organisations and forces that have plans for our region, not sanctions," he said after a Cabinet meeting.