(A) A revolution in Russia
(B) The assassination of Archduke Franz Ferdinand
(C) The raids by Mexican guerrilla forces on the Southwest United States
(D) ** The renewal of unrestricted submarine warfare by Germany
EXPLANATIONS BELOW
Concept note-1: -On April 2, President Wilson asked Congress to declare war against Germany specifically citing Germany’s renewed submarine policy as “a war against mankind. It is a war against all nations.” He also spoke about German spying inside the U.S. and the treachery of the Zimmermann Telegram.
Concept note-2: -Germany’s resumption of submarine attacks on passenger and merchant ships in 1917 was the primary motivation behind Wilson’s decision to lead the United States into World War I.
Concept note-3: -After a policy of neutrality at the outbreak of World War I, Wilson led America into war in order to “make the world safe for democracy.”
Concept note-4: -Which event most influenced President Woodrow Wilson’s decision to enter World War 1? Unrestricted Submarine warfare by Germany. During World War 1 what was President Wilson’s purpose in outlining the Fourteen Points?
Concept note-5: -Answer and Explanation: The main result of Germany’s use of unrestricted submarine warfare during World War l was the entry of the United States into the conflict. Submarines had been attacking the ships of neutral countries, as well as, ships that carried civilian passengers.