Answer
1. It looks like they are taking a picture of all the soldiers in the army.
2. It reminds me of the kind of war photos one would see in a history museum or in the home of descendents of a war veteran.
3. It connects to the overall war efforts by showing the people who gave their lives to be soldiers and fight for the country they love and plus the soldiers help to add numbers to the army. The more number of soldiers an army has the better chance they have of winning a war.
Step-by-step explanation: