But you're living in the most peaceful time because of us. Just forget all the destabilization and wars we caused all over the world to build that hegemony.
If it wasn't for us, those pesky kids were gonna grow up and nuke the whole planet. Those wars were completely necessary and we won every one of them.
tl;dr: the United Fruit Company (today known as Chiquita) reaped massive profits from plantations in Latin America. When Guatemala started introducing laws that harmed their profits, the UFC and its pocket congressmen started putting pressure on the country and spreading propaganda, accusing them of being communists. When Eisenhower was elected, he used the CIA to overthrow the Guatemalan government in 1954 (as they did in Iran a year before). The UFC's involvement is known, but to what extent beyond slandering the progressive government, is not clear.
I'm assuming it's because of united fruit overthrowing south American countries at the behest of the US government. Several good videos about it on YouTube.
And everyone knows the US had absolutely nothing to do with the USSR collapsing. Complete freak occurrence in a vacuum. No one could have seen it coming.