KEY POINTS
  • Turkish President Recep Erdogan faces a choice between buying U.S. or Russian-made weapons systems and has been warned by Washington of serious consequences if it partners with Moscow.
  •  The Pentagon has already announced a halt in delivery of F-35 joint strike fighter jet components to Turkey this week.
  • Any signs of increased tension with the U.S. will weigh on Turkish assets, analysts believe. 

Turkish President Recep Tayyip Erdogan now faces a choice that will have major consequences for both Turkey's foreign relations and its economy.

He can walk back pledges to buy a Russian missile defense system, the S-400, in favor of buying American weapons systems, or reject U.S. demands and forgo partaking in the F-35 joint strike fighter program, essentially choosing Moscow over Washington.