Why did Austria-Hungary perform so poorly in WW1?

But to answer your question, Austria-Hungary did do pretty poorly in World War I. The AH Army might have achieved some considerable successes in individual operations, notably the Caporetto and Gorlice-Tarnow offensives. read more

As far as I can tell, they only won a single battle, the battle of Krasnik. Other than that, their record might be the worst of any participating nation. read more

Edit: Anil Aydin mentioned in the comments, that the USA didn’t declare war on any other central power nations – so the better question might be why they only declared war on Austria-Hungary and not the others. read more