Because it was a church day <span>On Sundays the military relaxed discipline
somewhat, allowing soldiers and sailors to go on leaving for the weekend,
or to sleep in an extra hour in the morning.</span>
The answer is D. A set of diary entries written by generals who planned strategies during world war II. This is a primary source which was written during that time period and so would be the best support for the authors' argument..
He mentioned this term soon after the war. The phrase iron curtain refers to the division of Europe as the Cold War strengthened.