Complex sentence: The Use it or Lose it principle, is a military term referring to the idea of using a weapon before they are lost to a possible disabling strike to the weapon, hence where the term use the weapon or lose the weapon to an attack comes from.
Split into simpler sentences: The Use it or Lose it principle, is a military term referring to the idea of using a weapon before they are lost to a possible disabling strike to the weapon. Hence where the term use the weapon or lose the weapon to an attack comes from.