A short article from The Guardian, best explained by the writer's bio:
Ali Khedery is chairman and chief executive of Dragoman Partners, a strategic consultancy. He served as special assistant to five American ambassadors in Iraq and as senior adviser to three heads of US Central Command from 2003-10. He was the longest continuously serving American official in Iraq.
He ends with:
As world leaders now consider a military campaign to confront Isis, they should remember the lessons of America's costly and largely fruitless engagements in Iraq, Afghanistan and Vietnam. They should understand that no amount of foreign military power can ever make up for the misrule of corrupt, failed governments like those in Damascus, Baghdad, Kabul or Saigon. Unless they want a regional holy war, leaders should especially discount the advice of some who are now calling for an alliance with Assad's genocidal regime – perhaps the single greatest root cause of Isis's rise.

Instead, they should embrace the lessons of Iraq's Sunni tribal awakening, that only Syrian and Iraqi Sunnis can defeat radical militant Sunni entities like Isis. Likewise, they should understand that only the mullahs in Tehran can help quell radical militant Shia entities like Lebanon's Hezbollah, Assad's intelligence operatives or Iraq's militias.

Link:http://www.theguardian.com/world/201...had?CMP=twt_gu