Definice a Význam "gain ground"

What is the origin of the idiom "gain ground" and when to use it?

The idiom "gain ground" is a military metaphor that refers to gaining territory or advancing forward in a battle or war. It implies that progress is being made towards a goal and that the enemy is losing ground. The phrase has since been used in a broader sense to describe making progress towards a goal, achieving more success, or popularity in a particular area.