(A) D Day
(B) ** Germany signed an Armistice with the Allies
(C) Germany Invades Belgium
(D) The US enters World War I
EXPLANATIONS BELOW
Concept note-1: -An armistice is a formal agreement to end hostilities. On the 11th hour of the 11th day of the 11th month, 1918, fighting in WWI officially stopped after Germany signed an armistice agreement with Allies earlier in the day.
Concept note-2: -Veterans Day. The Allied powers signed a ceasefire agreement with Germany at Compiégne, France, at 11:00 a.m. on November 11, 1918, bringing the war now known as World War I to a close.
Concept note-3: -At the 11th hour on the 11th day of the 11th month of 1918, the Great War ends. At 5 a.m. that morning, Germany, bereft of manpower and supplies and faced with imminent invasion, signed an armistice agreement with the Allies in a railroad car outside Compiégne, France.
Concept note-4: -Immediately after the armistice, American and British troops moved into Germany as an occupying army. Their purpose was to ensure that the German army did not attempt any further aggression, and to bring order to the country after their leaders had fled.