I wanted to make sure that this is correct. Please give me your input. Thanks a lot!!

The countries involved in World War I was Russia, France, Italy, and Britain, Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria. I think Mexico was also but not sure.

Germany’s actions were causing the U.S. to become aggravated and disturbed. Two main factors that led the U.S. to be involved in the war were discovering the alliance between Mexico and Germany. (Why did the U.S. become angry?)Between February 3 and March 21 German-boats sank six American merchant ships without warning. In April 2, 1917 declared war on Germany

How did the U.S enter the war?

This site will help you with the facts and to some extent your organization of idea.

http://en.wikipedia.org/wiki/World_War_I

To verify the accuracy of your statements and understand the reasons why the United States became angry and eventually entered World War I, you can utilize the provided link to the Wikipedia page on World War I. Here's how you can navigate the page to find the information you need:

1. Go to the link http://en.wikipedia.org/wiki/World_War_I in your web browser.
2. Once the page loads, you'll see a comprehensive overview of the topic. Scroll down or use the table of contents on the right to find the specific information you seek.
3. To confirm the countries involved in World War I, look for sections such as "Participants" or "Parties to the conflict." In those sections, you should find a list of countries involved, including Russia, France, Italy, Britain, Germany, Austria-Hungary, the Ottoman Empire, and Bulgaria.
4. To understand why the U.S. became angry and entered the war, you can navigate to sections like "American entry into World War I" or "Reasons for American entry." These sections will provide details about the events and factors that pushed the U.S. to join the conflict.
5. In particular, the section on American entry should provide insights into Germany's actions, such as sinking American merchant ships without warning. This violated maritime rules and norms, leading to U.S. anger and eventually a declaration of war on Germany.

By following these steps and referring to the Wikipedia page, you can confirm the accuracy of your statements and gain a deeper understanding of the reasons behind U.S. involvement in World War I.