General European War....against America!

During the Spanish American War, many European countries, like Germany and France, supported the Spanish cause and tried to rally support for them, but this fell short of military aid. Shortly thereafter, the United States played a game of gunboat diplomacy with Britian and Germany over Venezuela, and later Germany over some Pacific islands. So my question is what if Germany decides to smash the American upstarts and goes to war with the United States over either of these issues, in the late 1800's or early 1900's. Who could they get on their side? Could Germany have interevened in the Spanish-American War? Would any other European powers, like GB, side with Germany? And what was the name of the German plan to invade the USA? I can't find any links for it.
 
Top