Let me explain...
Imperialism: "the policy of extending the rule or authority of an empire ornation over foreign countries, or of acquiring and holdingcolonies and dependencies."
http://dictionary.reference.com/browse/imperialism
http://www.google.com/imgres?imgurl=http://www.yugatech.com/ringtones/wp-content/uploads/2010/01/avatar-movie.jpg&imgrefurl=http://www.yugatech.com/ringtones/wallpapers/avatar-movie-mobile-wallpaper/&usg=__d-xxLj4fgzb9Q07fLYwFCFPv0sk=&h=350&w=380&sz=142&hl=en&start=0&zoom=1&tbnid=ytgoa56rcMUN3M:&tbnh=141&tbnw=151&prev=/images%3Fq%3Davatar%2Bmovie%26um%3D1%26hl%3Den%26client%3Dsafari%26rls%3Den%26biw%3D1024%26bih%3D599%26tbs%3Disch:10%2C138&um=1&itbs=1&iact=hc&vpx=618&vpy=259&dur=712&hovh=215&hovw=234&tx=127&ty=144&ei=wuwCTZ7eBML_lgf7otXkCQ&oei=wuwCTZ7eBML_lgf7otXkCQ&esq=1&page=1&ndsp=11&ved=1t:429,r:9,s:0&biw=1024&bih=599
