The primary difference between US intervention in Guatemala 1954 and previous central America was that the guatemalan intervention?

In previous interventions, the US had sent troops to occupy the country and directly overthrow the government. However, in Guatemala, the CIA used covert operations to support a coup d'état by anti-communist forces within the country. This marked a shift in US foreign policy away from direct military intervention towards more covert tactics, which would become increasingly common in future US interventions in Latin America.