How did the United States and allies fight in Germany

please give me brainlist and follow

Explanation:

Germany declared war on the United States in December 1941, and Washington made the defeat of Nazi Germany its highest priority. The United States played a major role in the occupation and reconstruction of Germany after 1945. ... Today, the US is one of Germany's closest allies and partners outside of the European Union.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others  

roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.