[_ptgt]

Referencing three American incidents from decades ago (which, although I consider Chile and Nicaragua to be among America's darkest FP moments, were all officially -- and mostly corroborated by the historical record -- undertook in the name of national security rather than commercial interests) hardly indicates this sort of tit-for-tat commercial relations between nations is the global norm.

[Sag0Sag0]

The US's coup in Chile was done precisely to protect US business interests. That's why large companies like Anaconda were so heavily involved in the coup. The thing that all those incidents share in common is that they all started when the nations involved began nationalising or restricting US companies.

A more modern example of this sort of behavior might be the original US sanctions on Venezuela in the 2000s.