And in 1918. . .

Don Cossacks under Cossack leader Pyotr Nikolayevich Krasnov took Rostov on the Don with German assistance.

In the now hopelessly topsy turvy situation in Russia the Imperial Russian Lt. General through in with his former enemies, the German Empire, against the Reds, opening up the area to the Germans and to the declaration of a white independent government.  When the Germans lost the Great War, he had to recognize the leadership of Allied aligned Whites, but of course he was on the losing side of the Russian Civil War and became an emigre to Europe.

And so the Germans occupied more ground in the fractured East, while their offensive in the West ground to a halt.

He threw in with the Germans again in World War Two and, after surrendering to the British at the end of the war, was handed over to the Soviets and executed on January 17, 1947.

Elsewhere, Nicaragua declared war on the Central Powers.

And the US opened a submarine base in Panama.