diversion

an activity that diverts or amuses or stimulates

• “scuba diving is provided as a diversion for tourists”
• “for recreation he wrote poetry and solved crossword puzzles”
• “drug abuse is often regarded as a form of recreation”

a turning aside (of your course or attention or concern)

• “a diversion from the main highway”
• “a digression into irrelevant details”
• “a deflection from his goal”

an attack calculated to draw enemy defense away from the point of the principal attack