The American occupation of western Germany preceded the Soviet occupation of Berlin.
In fact, at the beginning of 1945, after the United States broke through the Rhine defense line, Germany knew that it had no chance to make a comeback.
At that time, Germany decided to open the western front, let the Anglo-American allied forces advance rapidly, and strive to bring about conflicts between the United States and the Soviet Union.
At that time, Germany's slogan was "resist the Soviets, let the Americans kick our ass and give Berlin to the Americans"
In fact, British Prime Minister Winston Churchill was also very interested in Berlin, but the Americans thought that there could be no direct conflict with the Soviet Union, so they stopped attacking after meeting with the Soviet Union on the Elbe River, before the battle of Berlin started.
After that, the US military focused on the southern line. At that time, it was reported that Germany had 20 divisions and a large number of mysterious weapons in the southern mountainous areas. As a result, the Allies sent troops south.
The alliance between Germany and the United States was established in the 1950s. Germany was originally intended to be completely demilitarized, but the pressure from the Soviet Union continued to expand. In this case, the United States began to allow Germany to establish a certain number of armed forces.