BAGHDAD, Aug 12 (Reuters) - Iraq's prime minister accused corrupt politicians on Wednesday of plotting to sabotage his plan for sweeping reforms of the governing system, and warned leaders of powerful Shi'ite militias not to use their armed followers for political ends.
A year in office, Haider al-Abadi has launched the biggest overhaul of the political system since the end of U.S. military occupation, enacting a risky package of measures designed to enhance his own power and strip authority from political chieftains who have run Iraq since the fall of Saddam Hussein.
Lawmakers unanimously voted on Tuesday to eliminate a layer of senior government posts, scrap sectarian and party quotas for state positions, reopen corruption investigations and give Abadi power to fire regional and provincial bosses.
The bold moves will strip some of Iraq's most powerful people of official titles, including Abadi's predecessor Nuri al-Maliki, whose post of vice president is one of those to be abolished.
The reforms have garnered public praise from across party and sectarian lines as well as from Western governments, and are backed by Iraq's most influential cleric, Shi'ite Grand Ayatollah Ali Sistani. But in a televised speech, Abadi said he still expected resistance from those who profited from the system he inherited.
"The corrupt will not sit idly by," said Abadi. "Those with interests and privileges will defend their interests and privileges. Some of them will even fight for them. They will attempt to sabotage every step we take towards it."
While he did not name those he accused of plotting sabotage, he issued a warning against the politicisation of Shi'ite militias, whose leaders have become far more powerful over the past year as their forces have played the main role in battling Islamic State militants that seized northern and western Iraq.
"We should remove the Hashid Shaabi from the political field," he said, referring to a government body that acts as an umbrella for the militias. "There should be a dividing barrier. We cannot involve fighters in a political strife."
Abadi, who on Tuesday evening visited troops in western Anbar province gearing up for an offensive to retake the Sunni heartland, has struggled to consolidate his authority.
He took office last summer following the army's collapse in Islamic State's takeover of the northern city of Mosul, which left the Baghdad government dependent on the Shi'ite militias to defend the capital and recapture lost ground.
The governing system set up under the 2003-2011 U.S. military occupation included numerous overlapping senior posts, many set aside to be divvied up on ethnic and sectarian grounds among Iraq's majority Shi'ites and minority Sunnis and Kurds.
That was intended to reduce strife by keeping the government inclusive. But Abadi has complained that it encouraged ethno-sectarian party patronage, which led to corruption and incompetence so pervasive that it put Iraq's future in peril.
Abadi insisted his reforms were not targeted at anyone in particular, although he warned that opponents might try to portray him as hostile to particular communities to stir up resentment.
"I fear some will try to direct my words towards one individual or another, against a certain group or organisation. I do not have anyone specifically in mind," he said.
Abadi was selected as prime minister in part because he lacked strong ties to the armed groups that fought a sectarian civil war during the U.S. occupation, and was therefore seen as better able to promote conciliation than his predecessor Maliki.
But that has made it harder to stamp his authority on a country enduring war with Islamic State, chronic corruption, Kurdish separatism, personal rivalry among political leaders and a financial crisis caused by collapsing prices for oil exports.
Leaders of the Shi'ite militias "can easily convert their military legitimacy into a political legitimacy, saying no matter what Haider al-Abadi does, we are those fighting on the front lines," said Maria Fantappie, Iraq analyst at the International Crisis Group.
While Abadi's backing from the cleric Sistani makes it difficult for the prime minister's rivals within the Shi'ite majority to oppose his measures publicly, they could still try to spoil the reforms from behind the scenes. (Writing by Stephen Kalin; Editing by Peter Graff)