How is Turkish economy handling the pressure of so much defense purchase? How did Turkey manage to create a springboard for its defense industry so fast?


TFX program costs USD 10bn
S-400 purchase costs USD 2.5bn
Turkey targets 30% hike in military spending next year


How is Turkish economy handling the pressure of so much defense purchase?
Turkey had an estimated military spending of $14.8 billion in 2016. 

A 30% increase would be a $4.5 billion increase. That's 0.5% of GDP. Turkey's government budget deficit was 1.1% in 2016. All else equals, the budget deficit would rise to 1.6% with that kind of increase in spending. Either that or they cut spending elsewhere.