Attacks mainly targeting Shiite-majority areas of Iraq killed at least 57 people on Monday, and security forces killed 10 militants.
The Pentagon has informed the US Congress of a possible sale of $2 billion worth of military equipment to Iraq.
Violence including an apparently coordinated series of bombings that struck central and southern Iraq on Sunday killed 33 people.
Militants killed 25 Iraqi security forces members in a wave of attacks on Thursday, and 15 people died in other attacks, including 10 in twin bombings targeting mourners.
Attacks north of Baghdad left 41 dead on Monday as the UN said more than 2,500 were killed in the past three months, highlighting concerns that Iraq is slipping back into all-out war.
Three car bombs, including a suicide attack, a mortar round and a shooting killed at least seven people Sunday, most of them in northern Iraq where analysts fear tensions could trigger all-out conflict.
Attacks in Iraq, the deadliest of which struck Baghdad, killed 32 people on Thursday, pushing the death toll for this month above 600 and sparking fears of all-out sectarian conflict.
Iraqi authorities have contracted a Czech firm to carry out a 10-month restoration of the ancient Arch of Ctesiphon as part of a plan to boost tourism to the once-popular site.
Attacks in the Baghdad area and northern Iraq killed 58 people on Monday, the latest in a wave of violence that has raised fears of a return to sectarian conflict in the country.
A "war on mosques" -- deadly attacks by militants on Sunni mosques and Shiite places of worship called husseiniyahs -- using weapons ranging from bombs to mortar rounds is raging in Iraq.
Former US president George W. Bush says he remains "comfortable" with the decision to invade Iraq, even as a new spate of bloody violence hit the country and rocked politics in Baghdad.
Iraqis voted on Saturday in the country's first polls since US troops departed, a key test of the country's stability in the face of a spike in attacks that has claimed more than 100 lives.
Iraqi soldiers and policemen cast their ballots for provincial elections on Saturday, a week ahead of the main vote that comes amid an uptick in violence and a long-running political crisis.
Ten years after the US-led invasion of Iraq, the searing memory of what became a deeply unpopular war has made Washington policy makers reluctant to use even limited force in Syria or Iran.
After 10 years of attacks on Iraqi Christians, Monsignor Pios Cacha wonders if the ancient community's days are numbered.
Al-Qaeda's front group in Iraq has claimed a wave of bombings targeting Shiite areas of Baghdad that killed at least 21 people Sunday.
An Iraq war veteran believed to be suffering from post-traumatic stress disorder has been charged with killing a former Navy SEAL whose exploits in the same conflict were detailed in a best-selling book.
For weeks, Iraqi MPs have been locked in a political crisis that has stalled progress on key decisions including one affecting their own offices in a future parliament complex.
Iraq will close its border with Jordan on Wednesday due to anti-government protests that have blocked the main highway linking the two countries, a military official said.
Iraq and Jordan agreed on Monday to extend an oil pipeline to the Red Sea city of Aqaba for the export of Iraqi crude, Prime Minister Nuri al-Maliki said after a fleeting visit to Amman.