A dozen bombings in Iraq killed 55 people on Sunday as the prime minister prepares to travel to Washington to seek President Barack Obama’s help in confronting a wave of sectarian violence fuelled by Syria’s civil war.

Killings, mostly blamed by the Shi’ite-led government on Sunni Islamists from al Qaeda, are running at daily rates not seen in five years and Nuri al-Maliki will ask Obama on Friday to speed up promised deliveries of drones and F-16 jets that he believes can help staunch the long desert border with Syria.

Iraq’s own security forces, trained and equipped by the U.S. troops who withdrew in late 2011 after a nine-year occupation, have been unable to prevent a surge in violence which has taken the civilian death toll so far this year to about 7,000. Sealing the Syrian border would only address part of the problem.