<span>Because Americans encouraged them to do so. The US wanted to build the Panama Canal, but Columbia, the country that controlled the region of Panama said no thanks. The US figured if Panama revolted against Columbia, and claimed their independence, then the US only would need Panama's consent. It was an American inspired revolution, because we wanted the Canal.</span>
It seems as though as long as USA interests are left alone, nothing much would be done. Or if foreign involvement is bothering US interest then action will be taken as a last resort.
