President wilson broke diplomatic relations with germany when a. the zimmermann note was intercepted and made public. b. germany announced that it would wage unrestricted submarine warfare in the atlantic. c. news was received that a revolutionary movement had overthrown the czarist regime in russia. d. germany rejected wilson's fourteen points for peace. e. it appeared that the german army would take paris. 2. the zimmermann note involved a proposed secret agreement between a. britain and france. b. russia and germany. c. germany and mexico. d. mexico and france. e. germany and canada. 3. the united states declared war on germany a. in response to demands by american munitions makers. b. as a result of treaty obligations. c. because wall street bankers demanded it. d. after mexico signed an alliance with germany. e. after german u-boats sank four unarmed american merchant vessels.