Final answer:
The diplomatic effects of the Second World War in the Americas impacted the United States and Brazil. The United States transitioned from isolationism to engagement and became a global superpower. Brazil's involvement in the war raised its international profile and enhanced its diplomatic ties.
Step-by-step explanation:
The Second World War had significant diplomatic effects in the Americas. Two countries that experienced these effects were the United States and Brazil.
In the United States, the war led to a major shift in its foreign policy, transitioning from isolationism to engagement. The United States emerged as a global superpower and played a leading role in establishing international organizations like the United Nations. Diplomatically, the war solidified the alliance between the United States and other Allied powers and set the stage for the Cold War with the Soviet Union.
In Brazil, the war had a transformative impact on its diplomatic relations. Brazil initially adopted a policy of neutrality, but later joined the Allied powers. It played a crucial role in maritime patrols and convoy escorting in the Atlantic Ocean. Brazil's involvement in the war helped raise its international profile and enhance its diplomatic ties with other nations.