Iraq troops abandoned the border, and so the Saudis moved in to protect it. There could soon be a showdown with the forces of The Islamic State, as the new caliphate wants to unite all Muslims under its rule, including those currently under the rule of the House of Saud.
“Saudi Arabia Sends 30,000 Troops to Iraq Border: State-Owned TV,” NBC News, July 3, 2014 (thanks to Kenneth):
DUBAI – Saudi Arabia has deployed 30,000 soldiers to its border with Iraq after Iraqi soldiers withdrew from the area, Saudi-owned al-Arabiya television reported Thursday. The world’s top oil exporter shares an 500-mile border with Iraq, where Islamic State of Iraq and al-Sham (ISIS) insurgents and other Sunni Muslim militant groups seized towns and cities in a lightning advance last month. King Abdullah has ordered all necessary measures to protect the kingdom against potential “terrorist threats,” state news agency SPA reported on Thursday.
Al-Arabiya said on its website that Saudi troops fanned into the border region after Iraqi government forces abandoned positions, leaving the Saudi and Syrian frontiers unprotected. The satellite channel said it had obtained a video showing some 2,500 Iraqi soldiers in the desert area east of the Iraqi city of Karbala after pulling back from the border. An officer in the video aired by al-Arabiya said that the soldiers had been ordered to quit their posts without justification. The authenticity of the recording could not immediately be verified.