Fighting erupted at the northern approaches to Baghdad on Tuesday as Iraq accused Saudi Arabia of backing militants who have seized swathes of territory in an offensive the UN says threatens its very existence.
Washington deployed some 275 military personnel to protect its embassy in Baghdad, the first time it has sent troops to Iraq since it withdrew its forces at the end of 2011 after a bloody and costly intervention launched in 2003.
It was also mulling air strikes against the militants, who are led by the jihadist Islamic State of Iraq and the levant (ISIl) but also include loyalists of now-executed Sunni Arab dictator Saddam Hussein. Since the insurgents launched their lightning assault on June 9, they have captured Mosul, a city of two million people, and a big chunk of mainly Sunni Arab territory stretching south towards the capital.
The offensive has displaced hundreds of thousands of people and sent jitters through world oil markets as the militants have advanced ever nearer Baghdad leaving the Shiite-led government in disarray. Officials said that militants briefly held parts of the city of Baquba, just 60 kilometres from the capital. They also took control of most of Tal Afar, a strategic Shiite-majority town between Mosul and the border with Syria, where ISIl also has fighters engaged in that country’s three-year-old civil war.