Allawi's decision appears to clear another potential hurdle in long negotiations between Iraq's Shiite, Sunni, and Kurdish political blocs in their effort to form a new government.
Hezb-i Islami, an insurgent force led by former Afghan Prime Minister Gulbuddin Hekmatyar, was said to have announced its full backing for the so-called TAPI project on December 18 and volunteered to help protect it.
U.S. ties with Turkey are "more important than ever" despite differences over Iran, President Barack Obama is quoted as saying in an interview with Turkey's "Hurriyet" newspaper.
As the festive holiday season gets under way in Europe, snow and ice makes life difficult for thousands of people trying to fly.
Kazakhstan says a senior U.S. diplomat has thanked its foreign minister for supporting international efforts to stabilize Afghanistan.
Authorities say Alyaksandr Lukashenka has won a landslide reelection victory to a fourth term, in an election marred by the detention of opposition candidates and clashes between police and demonstrators.
Visiting Chinese Premier Wen Jiabao has described his country as Pakistan's "all-weather strategic partner."
Chinese Foreign Minister Yang Jiechi has urged both North and South Korea to open talks and avoid steps that could inflame tensions on the peninsula.
The U.S. Congress has voted to end the ban against gays serving openly in the U.S. military.
A report from the Iranian capital says there is heightened security in Tehran's streets as the Iranian government's cuts to economic subsidies come into force.
Insurgents have carried out attacks in the Afghan capital Kabul and in the north of the country.
Police in Moscow say they have detained dozens of people in order to prevent fighting between Russian youths and people from the Caucasus region.