US moves aircraft carrier into Gulf
The United States has ordered an aircraft carrier into the Persian Gulf as it laid out specific ways for Iraq to show it is united in order to gain assistance in its fight against Islamic insurgents.
US defence secretary Chuck Hagel ordered the USS George HW Bush from the northern Arabian Sea as president Barack Obama considered possible military options for Iraq.
Mr Hagel's press secretary, Rear Admiral John Kirby, said the move will give Obama additional flexibility if military action were required to protect American citizens and interests in Iraq.
Accompanying the carrier will be the guided-missile cruiser USS Philippine Sea and the guided-missile destroyer USS Truxtun.
The ships, which carry Tomahawk missiles that could reach Iraq, were expected to complete their move into the Persian Gulf by the end of the day. The George HW Bush's fighter jets could also easily reach Iraq.
Militants with the Islamic State of Iraq and the Levant (Isis) have captured large swathes of territory north of Baghdad. Their advance on the capital was sending food prices dramatically higher and prompting tighter security in the city of seven million people.
In a phone call on Saturday with Iraqi foreign minister Hoshyar Zebari, secretary of state John Kerry said US assistance "would only be successful if Iraqi leaders were willing to put aside differences and implement a coordinated and effective approach to forge the national unity necessary to move the country forward and confront the threat (of Isis)," according to a statement by the State Department.
Mr Kerry pointed to the importance of the Iraqi government ratifying election results without delay, adhering to its constitutionally mandated time-frame for forming a new government and respecting the rights of all citizens as it fights against terrorism, the State Department said.
Amid sectarian strife between Sunni and Shia citizens, prime minister Nouri al-Maliki called for unity of all Iraqis. A Shia, Mr al-Maliki is widely resented by Sunnis for his perceived sectarian policies.
Mr Kerry told Zebari that the US was emphasising with the international community as well as those in the region the threat posed by Isis and the importance of coming to the aid of Iraq.