Turkish Straits crisis

Low level: 20 July 1936 – 6 August 1946 (10 years, 2 weeks and 3 days)
High level: 7 August 1946 – 30 May 1953 (6 years, 9 months, 3 weeks and 2 days)

Turkish Straits crisis
	Part of the Cold War (from 1947)
	; The location of the Bosphorus (red) and Dardanelles (yellow) straits.
Date	Low level:; 20 July 1936 – 6 August 1946; (10 years, 2 weeks and 3 days); High level:; 7 August 1946 – 30 May 1953; (6 years, 9 months, 3 weeks and 2 days);
Location	Black Sea; Sea of Marmara;
Result	Status quo ante bellum The Soviet Union withdraws demands for a regime change on the Turkish straits; Turkey joins NATO;
Belligerents
Turkey; Supported by: United States	Soviet Union
Commanders and leaders
İsmet İnönü; Adnan Menderes; Harry S. Truman; Dwight Eisenhower;	Joseph Stalin; Vyacheslav Molotov;
Strength
Unknown number of Turkish Navy ships; Unknown number of US Naval advisors;	Several warships; Unknown number of ground forces;

The Turkish Straits crisis was a Cold War-era territorial conflict between the Soviet Union and Turkey. Turkey had remained officially neutral throughout most of the Second World War. After the war ended, Turkey was pressured by the Soviet government to institute joint military control of passage through the Turkish Straits, which connected the Black Sea to the Mediterranean. When the Turkish government refused, tensions in the region rose, leading to a Soviet show of force and demands for territorial concessions along the Georgia–Turkey border.

This intimidation campaign was intended to preempt American influence or naval presence in the Black Sea, as well as to weaken Turkey's government and pull it into the Soviet sphere of influence. The Straits crisis was a catalyst, along with the Greek Civil War, for the creation of the Truman Doctrine. At its climax, the dispute would motivate Turkey to turn to the United States for protection through NATO membership.