Hypothesis Z

It was based on an offensive against Austria-Hungary in Transylvania and a simultaneous defense of the country against Bulgarian attacks in the south.

Once Russian forces had arrived in Dobruja, the Romanian Army would launch another offensive against Bulgaria.

The plans were developed with the idea that a war against Romania could exist in three directions: south, northwest and east.

They initially treated a possible war with Russia but eventually switched mainly to a potential invasion of Austro-Hungarian territory and the defence of the border with Bulgaria.

On the other hand, the Third Army (the remaining 25%) would stay on the Danube and in Dobruja to defend Romania from Bulgarian attacks.