My maternal grandfather was killed in action on June 21st 1917. When I got promoted I went out to his grave on the Somme and donated him one of my crowns and stars. All my grandfather earned was a military cross, and they buried him under it.
The rest of my large Canadian and British family also sent their men to fight in WW1, but he was the only one who died.
WW2 was the same - two of my uncles waded ashore on Gold Beach, and got nary a scratch in the entire rest of the war and came home to Ontario. My dad, a convicted Irish terrorist, was not allowed to serve in the military, but did his bit as a skilled machinist and general engineer in an armoured vehicle repair workshop.
Here in UK I care for a number of Canadian graves WW1 and 2, in the local area, and every Remembrance day we hold a small service, me and some of the 'real' Canadians [I'm only a halfie] from the local military base.
We can never repay what we owe, we can just remember that we owe them all we are today.
tac