Rogue regimes have extracted an inordinate amount of energy, blood, and treasure from the world's militaries in the past century. Overthrowing these regimes is a major policy decision - fraught with peril and unknown downstream implications. The United States painfully re-learned these lessons following the invasion in Iraq and after deposing the Taliban in Afghanistan. Unconventional warfare (UW) is the flip side of counter-insurgency, in which external military elements enable surrogate guerrilla forces against an incumbent government. An updated concept for UW campaigns may offer a more...