The Thin Line Of Life III: Struggle For Survival

There was once a place called America, the beacon of hope for the rest of the world.
This America was beautiful, filled with obesity and charity and crime. It was ugly in parts, but America believed in self improvement as it's defining trait. No nation on Earth could match its generosity and fight for fairness.
Now it simply fights the Zombies.
The center has fallen apart but somehow the edges still hold. The war wages on and the struggle for survival continues.