The rise in violence, which has left more than 150 people dead in the past week alone, has fuelled fears Iraq is on the brink of falling back into the brutal Sunni-Shiite sectarian war that plagued it years ago.
Officials have also voiced concern over a resurgent Al-Qaeda emboldened by the civil war in neighbouring Syria, which has provided jihadist fighters in Iraq with rear bases to plan operations.
Attacks today struck the capital and predominantly Sunni Arab areas of north Iraq that have borne the brunt of the worsening unrest, which has killed more than 5,900 people this year.
From late 2006 onwards, Sunni tribal militias, known as the Sahwa, turned against their co-religionists in Al-Qaeda and sided with the US military, helping to turn the tide of Iraq's insurgency.
But Sunni militants view them as traitors and frequently target them.
Also today, three separate attacks in the capital killed three people, among them a justice ministry employee.
In the northern city of Mosul, meanwhile, a magnetic "sticky bomb" attached to a car killed its driver, while police found the body of a woman who was shot dead the previous night near the restive city of Tikrit.
But diplomats, analysts and human rights groups say the government is not doing enough to address the root causes of the unrest, particularly disquiet among minority Sunnis over alleged mistreatment at the hands of the Shiite-led authorities.
Prime Minister Nuri al-Maliki nevertheless used a recent trip to Washington to push for greater intelligence sharing and the timely delivery of new weapons systems in a bid to combat militants.
Turkey has also pledged to help, and France today offered weapons, training and intelligence cooperation.
Asked after his speech, which he gave at the Rasheed Hotel in Baghdad's heavily-fortified Green Zone, if that help included the sale of weapons, Gauer responded: "Yes, of course.
