Capitalist trade necessitates competition & states, even if you ignore how violent setting up that trade network was, the need for competition to push profits up means you need to put down local competition or regulations (e.g the US (where the biggest companies reside) need to coup democratic leaders that get in the way of profits, such as the Iranian coup, etc), but people don't like that so you end up with counter revolutions which puts forces hostile to the US in power, and eager to give the US a bloody nose (but mostly through proxy wars).
And that's without even getting into the trade creating Cheneys who want war because it is profitable.