The Turkey issue :
USA has provided a deadline on June for Turkey to withdraw from buying Russian S-400. Turkey is unlikely to comply. Not as long as Erdogan is in power. And harsh retaliation expected from USA.
Cancellation of F-35, sanctions are expected. But will Turkey withdraw from NATO is the big question. The aftermath should be messy if that happens. We shall know in two months. Maybe it won't break from NATO, but relation will get worse. Like a broken marriage, that isn't a divorce yet.
And as usual, Turkey's currency is collapsing hard. Economy in crisis.