The murder of Franz Ferdinand brought World War l which was mostly pointed towards the freedom of the Europeans who were attacked by Hitler and his men
Based from the diary entry, it would seem as though the Germans were ready for the Americans to attack. They put mines and obstacles in the sea and on land to deter the approaching army. They used a German 88mm gun-- a long-range anti-air craft, anti-tank, anti-personnel gun most feared by the Allies-- to gun down American soldiers.
Despite these diffulties, the American soldiers drew inspiration and strength to continue fighting under the leadership of Gen. Theodore Roosevelt Jr., son of President Theodore Roosevelt, one of the highest-ranking officer on the beach during D-day
assuming efficiency of each man to dig trench, in one day, for one hour is constant,
so one man, working for one hour in one day can dig 1.5 m
so 8 men, working 3 hours a day and will take, say $d$ number of days and efficiency will be constant. so,
$\frac32=\frac{220}{8\times3\times d}$
$\implies d=\frac{55}9=6.12$
He is a part of Trump's cabinet members.
He wanted to free slaves on the precedent that all men are created equal.
