Is this a good thesis for this topic question? I really need help, I can't ask my mom for help right now and I usually have her help me so it's kind of hard for me to do this totally on my own thank you so much if anyone could help.

Topic Question:"An unnatural alliance that was bound to fall apart after the defeat of the common enemy." To what extent does this statement explain the origin of the Cold War?

My Thesis:These legacies of distrust throughout the history of the United States and Russia is what caused the Cold War, and after the defeat of the common enemy Hitler, the disagreements between the US and Russia only grew larger, also Stalin’s unilateralism caused the alliance during WWII to fall apart.

The content is fine, but you need to smooth it out and make it not read so "choppily." That last clause needs to be better incorporated so you don't have a run-on.

Your thesis statement addresses the topic question by discussing the role of legacies of distrust, the post-World War II disagreements, and Stalin's unilateralism in causing the Cold War. However, to improve your thesis statement, you can make it more concise and focused.

Here's a revised version:

"The Cold War originated as a result of the long-standing distrust between the United States and Russia, which intensified after the defeat of their common enemy, Hitler. Disagreements between the two nations further contributed to the deterioration of the WWII alliance, with Stalin's unilateral actions playing a significant role in its eventual collapse."

By making your thesis statement more succinct and focused, it becomes easier for readers to understand your main argument. Remember to provide evidence and support for each of the points mentioned in your thesis statement throughout your essay.