D, US involvement in the Korean Civil war lead to increase in military spending
A)a new defensive tactic known as trench warfare
Trench warfare allowed the war to drag on for long periods of time because of the stalemates that ensue from the opposing armies refusing to give up the land under their controls, resulting in high casualties in no man's land.
Hope this helps
Good question it depends on how dangerous and the people
That phrase works perfectly! Although if you’d prefer a phrase that rhymes, Join the war and fight off shore might work (idk)
Otherwise, this works perfectly with your poster and would help express the symbolism you’ve provided!
Good luck and your poster looks rest so far!