[kearnyirish2]

The surrender of Russia freed over 1 million German troops up for operations in the west - and was probably the real reason for the US entry in the war. Austria-Hungarian troops could be re-directed to put even more pressure on Italy, and Turkey’s troops in the Caucasus would be freed up to deal with British interests in the Near East. A bunch of “what-ifs”, but there really was no path to victory at all for the Triple Entente at that point.

[Lee Enfield]

In 1918 the German offensive was starting to wind down before the bulk of the US forces hit the line. While the reason for the increased defensive strength on the part of the Allies is probably because the knew the Americans would be there soon, there is still the fact that all of the participants were just worn out. I think that without the US in the war there was probably about a 75% of a Central Powers victory.