During World War I, was the term widely used to describe a state of war in which neither side was winning or gaining an advantage.

The answer is stalemate. Neither side had the advantage as both armies remained in the trenches and were unable to advance. It was only during the entry of the United States that the tide of the war began to turn.

The answer is stalemate.

Neither side had the advantage as both armies remained in the trenches and were unable to advance. It was only during the entry of the United States that the tide of the war began to turn.

Explanation:

Stalemate could be a state of affairs within the game of chess wherever the player whose flip it's to maneuver isn't in restraint however has no legal move. the principles of chess give that once stalemate happens, the sport ends as a draw.