Answer:
1. January 16, 1917 --- The Zimmermmann Telegram was released.
2. February 3, 1917 --- Unrestricted submarine warfare resumed.
3. April 6, 1917 --- The US declared war on Germany.
4. January, 1918 --- American troops deployed to Europe.
5. November 11, 1918 --- The armistice was signed.
Explanation:
1- The Zimmermann telegram was a telegram sent by Arthur Zimmermann, Minister of Foreign Affairs of the German Empire, on January 16, 1917 (during the First World War), to his ambassador to Mexico, Count Heinrich von Eckardt. In it the ambassador was instructed to bring to the Mexican government a proposal to form an alliance against the United States. It was intercepted by the British espionage services, and its content accelerated the entry of the United States into the war.
2- The German submarine war resumed on February 3, 1917, which gave President Wilson reasons for relations with the German Empire.
3- On April 2 President Wilson spoke before Congress. With a deep sense of the solemn and tragic step he was taking, he told parliamentarians that they should consider the German actions (the Zimmerman Telegram and underwater warfare) as a declaration of war against the government and people of the United States.
Two days later the Senate voted in favor of Wilson's resolution and two days later it was approved by the House of Representatives.
It was so on April 6, 1917, the president signed his official statement. The United States entered into World War I.
4- American troops were deployed to Europe on January 1918, after declaring war on Austria Hungary.
5- The Armistice of November 11, 1918, also known as Armistice of Compiègne, was a treaty signed on November 11, 1918 between the Allies and the German Empire.
