"The last American combat brigade in Iraq has left the country, the US military has said. The 4th Stryker Brigade, 2nd Infantry Division began crossing by land into Kuwait in the early hours of Thursday, said a spokesman. The US combat mission in Iraq is scheduled to end on 31 August. But the Pentagon has not confirmed that the move by the 40,000 personnel from Stryker Brigade marks an early end to combat operations. Most of them drove out of Iraq in a convoy of armoured vehicles, say reports. The journey along potentially hostile desert roads had been carefully planned for weeks. Some of the brigade remained behind to complete logistical and administrative tasks but would leave the country by air later in the day, the Associated Press reported."