This brief article seeks to shed light on the interdependence that emerged in TurkishAmerican relations during the Cold War era in the face of Soviet threat. The alliance was based on keeping the balance of power in a tight bipolar world order. On the US side, the inclusion of Turkey in the US defense umbrella was recognized as a primary US interest in pursuing the policy of containment regarding Soviet expansionism, because of the geopolitical position of Turkey. On the Turkish side, the US was regarded as a security guarantor in the face of Soviet territorial demands. Thus, the rapprochement between the US and Turkey in deterring Soviet aggression was shaped heavily by a strong ‘mutuality of interest’. The paper provides an overview of th...