Imperialism is the expansion of one nation's influence over other nations. Domestically, since the nation started expanding west, new territories as far away as Hawaii, Guam and Samoa were annexed, or added into the country. America also ended up at war with Spain and got the Philippines, Guam, and Puerto Rico. In other styles of imperialism, the American CIA helped rebels overthrow President Allende of Chile and placed a more American-friendly leader in charge. American companies like United Fruit demonstrated economic imperialism once they became so powerful they could influence other governments. Now, people worry that America is becoming so influential through products like movies and companies like Coca-Cola that it could result in a form of cultural imperialism. There are many styles of imperialism, but at the end of the day, the house on the right still gets to use the house on the left as a tool shed.