NEW YORK/BAGHDAD, June 13 (Reuters) - The fall of Mosul, Iraq's second-largest city, to Sunni militants this week was facilitated by the sectarian distrust and stalemate among Iraq's political leaders.
Prime Minister Nouri Maliki blames his Sunni political opponents for conspiring against him and supporting armed groups like those that took Mosul, while his Kurdish and Sunni rivals - including Mosul governor Atheel Nujaifi and brother Usama, the outgoing speaker of parliament - say he failed to heed their warnings that Mosul's implosion was coming.
While the politicians were deadlocked in charge and counter-charge, the Sunni militants grew in strength and took advantage of their divisions, which could lead to Iraq's break-up into Shi'ite, Sunni and Kurdish territories.
It had long been known that Mosul, a city of 2 million people, hosted not just the Islamic State of Iraq and the Levant (ISIL) but also the Baathist militant group the Jaish Naqshbandi, believed to be headed by Ezzat Ibrahim al Douri, a former close aide to Saddam Hussein.
After the fall of Saddam in 2003, officers from the old Iraqi army who had not been reconciled to the new order collected there.
The city's proximity to the border with Syria allowed Baathists - Saddam's political party - and Islamic extremists freedom of movement.
Maliki's own senior commander in Mosul, Mahdi Gharawi, who fled the city early on Tuesday, estimated in December that the province contained around 1,000 members of ISIL, a group that splintered from al Qaeda.
"Al Qaeda needs Mosul. They think of Mosul as their Islamic emirate," Gharawi said then.
"It is easy for them to hide (in Mosul). They are adopted by different elements in the city and province. The government made mistakes, and ISIL capitalized on each one," he said.
Despite this knowledge, the government failed to act.
Mosul governor Atheel Nujaifi, who fled the city this week said: "There are camps in the desert, and we have repeatedly asked the government to bomb these camps instead of luring ISIL into the cities to fight it."
The Kurds also complained after the insurgents' gains on Tuesday that Maliki had not heeded their warnings and offers of forming joint Kurdish-Arab units to defeat ISIL.
Jabbar Yawar, the head of the ministry of Pershmerga, said his warnings about ISIL had fallen on deaf ears.
"They imagined that what we were saying was a political issue."
Khalid al-Assadi, a member of Maliki's State of Law alliance, said the Nujaifis and the Kurds were always trying to force the army out of Mosul.
"I myself held more than one meeting with Atheel Al-Nujaifi in which he was saying that Mosul is peaceful and doesn't need all these troops and the army must be withdrawn."
LACK OF TRUST
At heart, the issue is a lack of trust in opponents that Maliki feared were trying to undermine his central authority.
Collaborating with the Kurds, who run their own autonomous region and are in dispute with Maliki's government over oil revenues, would have seemed like a setback for him; he had purged military units of Kurds in the north since 2008 as he started to rebuild the central government.
He considered the fledgling alliance between the Kurds and Nujaifis in welcoming Exxon Mobil to Nineveh Province to extract oil as a threat to a centralized state.
He also noted that the Nujaifis had spoken of creating an independent Sunni region and characterized it as a betrayal.
"It is so saddening that at the time our army faces these killers and criminals, it is being stabbed in the back by some politicians," he said in April ahead of elections at the end of that month.
One advisor to the Nujaifis' political bloc said their movement had been attracted by the possibility of a separate Sunni region and had tacitly accepted the militant action Iraq has seen in Anbar province and around the country since last December as a tool to that end.
"We tell them, 'Don't let the army into your areas. Don't get into a fight with ISIL.' We have to bear their radicalism. A Sunni region will become a fact," said a member of the Mutahidoon, a bloc belonging to parliamentary speaker Nujaifi.
Part of the criticism against Maliki is that he, too, has played up Iraq's divisions to entrench his own political support.
One key advisor to Maliki told Reuters that the premier's decision to take on militants in the Anbar province since late December was to show Shi'ites that he was strong, to improve his chances for a third term in the elections.
It also served to embarrass the Nujaifis, who had ambitions to be national leaders of Iraq's Sunnis, but had not been able to find a solution to the conflict, which was disrupting the lives of ordinary Sunnis.
"He played the sectarian card well," a second Maliki advisor said.
(Additional reporting by Isabel Coles; Editing by Will Waterman)