I have, but my point is that if you want to start counting that as an empire, you'd have to count the Libyan Empire meddling in Uganda, the Cuban Empire meddling in Angola, the Vietnamese Empire Meddling in Cambodia and Laos, The various Nato Empires meddling in the Balkans, The Iranian Empire Meddling in Lebanon and Iraq, etc. etc. until everyone has an empire.
I believe there is a tangible distinction, with many faces, between the case for Libyan, Vietnamese and Cuban Imperialism and that for the USA. The others are a little less clear cut.
Firstly, the USA exercises, and has exercised, sovereignty over many disparate and distant nations and peoples around the world, especially in Latin America and often using direct force to do so; from Puerto Rico to Panama, from Cuba to the Philipines, from the Virgin Islands to Paraguay, and right across their present national borders ever since Independence. That's direct sovereignty and often with clauses in constitutions to grant the USA the right to intervene in their internal affairs, such as in Cuba's.
Secondly, US military interventionism. The list of Southern and Central American nations that have had a taste of direct US military interventionism - ie. boots on ground - is quite lengthy: Panama, Haiti, Dominican Republic, Nicaragua, Honduras, Cuba, Puerto Rico, El Salvador and so on and so forth. And that's just in their backyard.
Feel free to add Korea, China, Indonesia, Belgian Congo, Libya, Vietnam, Afghanistan (Soviet era and now), Kuwait, Iraq, Somalia and so on. And that's also just the overt interventions, which saw boots on ground.
There's a whole other list of CIA manned covert operations to bring nations under USA influence and / or sovereignty. Many are within their backyard again, but there is also a lengthy list in far flung places around the world, with Operation Ajax in Iran (toppling a democratically elected government) taking pride of place perhaps.
These are all examples of the USA 'extending its dominion over populations that are markedly distinct culturally and ethnically from the culture/ethnicity at the center of power'. They are all examples of US military, hegemonic power in action.
Thirdly, the military bases. If the USA isn't an imperial power then why all the military bases all over the world? Why are their numbers growing? What purpose do they serve exactly?
- So, can we really say all this about Libya's imperial ambitions? Or Vietnam's? Or Cuba's?
- If this isn't Imperialism in action, then what the hell is it?