Our Flags. Beat Germany. Support every flag that opposes Prussianism. Eat less of the food Fighters need, Deny yourself something. Waste Nothing" poster
The pattern
This still is filed under Civilian war-duty equate.
Define
A civilian act (saving, making, staying quiet) is framed as the same duty as the front.
Mechanism
Moral equate. The small act inherits the gravity of the large one. The ask is ordinary. The meaning is not.
Verdict
We need mass compliance on an unglamorous behavior and can honestly tie it to a shared stake.
Why it works
It connects the mundane act of eating less and wasting nothing directly to the grand, heroic goal of winning the war.
Steal this when
You need to motivate people to make small personal sacrifices for a larger collective goal.