I dont know about the Iranians.

The Turks fight a tough delaying strategy & Stalin has to listen to excuses from his Generals about the higher casualties, slow progress and endless technical problems. Germany imeadiatly starts aid to Turkey.

After France collapses Germany begains looking at the options for attacking the USSR and increases aid to Turkey. The Soviet leaders reconsider their position with a large portion of their forces deployed far to the south. Accelerating conscription, training, and equipment programs is attempted.

Possible three way armistice discussions between the USSR, Germany, and Turkey might begain. Or, Germany opts for war before the end of 1940.

In the latter case by April of 1941 Germany has cleared Soviet forces from Poland & maybe the Baltic Nations, reinforced the Rumainians, and helped the Turks secure western Anatolia. Preperations for large springtime attacks are underway. Britian is trying to cope with the need to defend Egypt from two directions.

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