What was the area in between opposing trenches called during world war 1

 "No man's land."

Context/explanation:

Trench warfare in World War I was miserable and gruesome.  The armies had dug into trenches across from one another, and any attempts to rush out and attack the other side usually meant getting mowed down by machine gun fire.   You might want to check out All Quiet on the Western Front by Erich Maria Remarque (1929) for first-hand descriptions of the misery of the trench warfare.

The term "no man's land" meant that the area between the safety of the opposing trenches was no place to be.  You were likely to get slaughtered if you ventured out there.

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”

the tallest building in the western hemisphere and the sixth tallest building in the world