S-400

US tells Turkey to 'clarify' its position on S-400s
US 'offering Patriot missiles if S-400s not operated'
Turkey to activate S-400s in April
Defense Minister Akar says Russian S-400s to be operational by spring
Airstrike kills Turkish soldiers, Ankara 'asks US for Patriot missiles'
Idlib dispute 'won't affect S-400 deal' with Russia
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Let's stand for peace
Farewell to Duvar