Hybrid Warfare is a tactic used by George Washington.
This tactic involved combining the uses of conventional armies and militias. This involved using the miltias launching hit-and-run attacks on the enemy to weaken and exhaust them, then use the conventional army to fight at battles and sieges.
George Washington used this tactic at the Siege of Yorktown where his state militias launched the unconventional part: attacking supply lines, launching ambushes on the British. Then, after the French fleet cut off chances for reinforcement, Washington used the Continental Army to launch a siege until the British surrendered.