Final answer:
Countries 1, 2, 3, and 4 are Guatemala, Honduras, Nicaragua, and Costa Rica. U.S. involvement in these countries during the 'Banana Wars' included interventions by U.S. banana companies and U.S. Marine occupations.
Step-by-step explanation:
Country 1, 2, 3, and 4 refer to the 'banana republics' in Central America, specifically Guatemala, Honduras, Nicaragua, and Costa Rica. These countries were heavily influenced by US corporate interests, particularly United Fruit Company (U.F.C.), which dominated the banana trade in the region. U.S. involvement in each country during the 'Banana Wars' included interventions by U.S. banana companies in the internal affairs, U.S. Marine occupations to quell disorders, and the establishment of dictatorial regimes favorable to U.S. interests.