Generally when we imagine a CP victory involving no US involvement/no USW, we assume things proceed largely as in OTL except without the US and with the Central Powers winning the Spring Offensive. However, I want to consider whether the lack of US support might impact the morale of the already bloodied Entente powers (especially Russia, France and Italy) and cause them to make peace earlier. All three had very stubbornly pro-war governments but would the loss of morale due to no hope of reinforcements push them to accept defeat earlier? Or would they continue the struggle, possibly fall to revolution (as Russia did OTL), or survive in battered form until 1918, when their defeat would come?
Britain of course is in a better position but would they sue for peace if their allies surrendered? Or would they fight on and hope the blockade would starve Germany to the breaking point? Remember, no USW means Germany is not starving Britain, so the blockade effect is one-sided; could Britain manage to win through attrition?
Also, would smaller powers like Greece, Brazil, Thailand, and China join the war without the US? I assume Liberia and the Caribbean allies of the US would not, of course, but how much did the US entry impact their decisions?
Britain of course is in a better position but would they sue for peace if their allies surrendered? Or would they fight on and hope the blockade would starve Germany to the breaking point? Remember, no USW means Germany is not starving Britain, so the blockade effect is one-sided; could Britain manage to win through attrition?
Also, would smaller powers like Greece, Brazil, Thailand, and China join the war without the US? I assume Liberia and the Caribbean allies of the US would not, of course, but how much did the US entry impact their decisions?