Memo to heads of state: beware the clever general who turns up at a tough moment, and says "Leave it to me: I can fix it for you." Two examples come to mind. The great field marshal of the Thirty Years War of 1618-1648, Albrecht von Wallenstein, taught armies to live off the land, and succeeded so well that nearly half the people of Central Europe starved to death during the conflict.
General David Petraeus, who heads America's Central Command (CENTCOM), taught the land to live off him. Petraeus' putative success in the Iraq "surge" of 2007-2008 is one of the weirder cases of Karl Marx's quip of history repeating itself first as tragedy second as farce. The consequences will be similar, that is, hideous.
Wallenstein put 100,000 men into the field, an army of terrifying size for the times, by turning the imperial army into a parasite that consumed the livelihood of the empire's home provinces. The Austrian Empire fired him in 1629 after five years of depredation, but pressed him back into service in 1631. Those who were left alive joined the army, in a self-feeding spiral of destruction on a scale not seen in Europe since the 8th century. Wallenstein's power grew with the implosion of civil society, and the Austrian emperor had him murdered in 1634.
Petraeus accomplished the same thing with (literally) bags of money. Starting with Iraq, the American military has militarized large parts of the Middle East and Central Asia in the name of pacification. And now America is engaged in a grand strategic withdrawal from responsibility in the region, leaving behind men with weapons and excellent reason to use them.