I know this question has probably been asked an innumerous amount of times on this site but it seems to be the most popular POD for a Central Powers victory in WW1 or a stalemate. What if the United States didn't join WW1 on the side of the Entente? How could this be avoided? Was American involvement inevitable? And even if America doesn't join the war, do the Central Powers even have a chance at victory? What would that victory look like?