In its maturity his theology was seen as revolutionary in economic, social, and political—as well as intellectual and doctrinal ways. The printing press quickly made Luther's ideas more accessible and assured that they were recorded in permanent forms. Political circumstances also favored Luther and Lutheranism.
Fundamentally Luther succeeded because his ideas appealed to people of all classes. Yet another reason for Luther's success was the relative weakness of the forces opposing him. Religious opposition centered in the top levels of the Catholic bureaucracy
I think the United States was justified in sending troops to Cuba and the Philippines to fight against Spain because many Cubans flew to the USA to escape from the Spanish control. That act was a manifestation that they expected help from the USA, so the USA was morally compelled to take action.
