LyrArc Article Gist
Ben Van Heuvelen documents in the Washington Post what Ali Nabhan and Bradley pointed out in the WSJ in May 2009, that the officers in the Iraqi army lacked the training and discipline to act as an effective fighting force. These early indications proved correct and were ignored by the Iraqi government and the Obama administration till it was too late with the fall of Mosul and the ensuing chaos in Iraq.

LyrArc Article Gist
The Iraqi army takes over the Al Nuri Grand Mosque in Mosul, but what the mosque and the city itself lie in ruins. The minaret is gone in the debris, a shattered city is what is left from the Islamic State takeover of the city in 2014 and the eight month effort in 2017 by the Iraqi army to retake the city.   For more depth see links and groups or search- The problems of Mosul started with the openly sectarian administration of prime minister Nouri Maliki leading to alienation of Sunnis in Mosul. Corruption in the administration and weakness in the Iraqi army combined with alienation of Sunnis to create an opening for a militant group Islamic State in Syria and Iraq. As Iraqi units disintegrated Mosul fell, leading to a worsening of the refugee crisis in Syria and Iraq, increasing the flood of refugees to Europe, and the series of terrorist incidents in Paris, Berlin, London, rise of right wing groups in the European Union, in a chain reaction. The failure of the Obama administration to setup a "no fly zone" in Syria simply compounded the crisis into what it is today. At the root of the crisis - the failed efforts to reconcile Sunnis and Shiites in Iraq, and the sectarian conflicts in the region as a whole stretching from Saudi Arabia and Egypt to Iran.     ...