They were crying because it was do do with them fighting the germans in the war i think .
Yeah, The couple meeting then the outbreak of the war, her getting letters as he's away and at the end their kid is up the window as his dad comes home to them.
Very good, I was impressed.
PS. The people were crying because maybe they actually still have some appreciation for their history and pride in what their forefathers done to repel the invaders during the war.