I'd be curious to know what people think would happen if the US decided they want their government gone. The most obvious strategy is to start internet and social media campaigns first (of which the US have complete control), and second step is to fund and arm "rebels" who are willing to conquer the state from inside and hand it over to the US on a silver plate. Complete deniability, no official war declaration, no domestic debate. And if the targeted country blocks the internet or shoots the "rebels", then the entire Western press can denounce that government as an illiberal, ferocious entity that censors information and kills its own citizens.