OK, well the Spanish sent out conquistadors, also means conquerors.Their mission was to find gold, and any other forms of wealth. Land wouldn't be a bad thing either.<span>They never had much interests in legends, but Ponce de Leon DID want to find the Fountain of Youth.</span>
The U.S refused to recognize the Philippines independence.
Most cause were in the U.S governments quest for an overseas empire of the Filipino people for freedom.
The russians practiced communism where as the west (usa,britain,france) were anti communist. the us were capitalists , thus is would make sense that the ussr and the usa would clash eventually despite their pasts of helping eachother out. once russia clashed with the west it gave way to the cold war