Reminder to all viewers of this blog.
The United States has directly overthrown the governments of Iraq and Afghanistan (albeit the United States did re-install the government of Afghanistan) in the last 20 years.
The United States has indirectly overthrown the governments of Ukraine, Libya and Syria in the last 20 years.
The United States has attempted to overthrow numerous other governments, and has likely overthrown multiple others besides the above mentioned in places like Africa (Libya already mentioned).
Bar none- the United States has been the most aggressive hegemonic power in the post WWII era