The correct strategy is not to conquer but to cull. From time to time, US should just send military in to render to site as vast land of death and pity-ness say

The correct strategy is not to conquer but to cull. From time to time, US should just send military in to render to site as vast land of death and pity-ness say under a week. Repeat this periodically over 50 years. No forces on earth would be able to sustain that even if Russian and Chinese combine forces. Sharp and devastating destruction played over years is extremely effective and much affordable than the current Afghan and Iraq 2 decades of debacles.