The United States is maintaining the pressure on Iran for its support of both Shia militias and Sunni insurgents. Yet again, Multinational Forces Iraq has detailed the Iranian involvement in supplying weapons and support for the Shia militias. In today's press brief, Major General William Caldwell also stated some aid from Iranian intelligence services was being given to Sunni insurgents. The United States has also rejected the Iranian demand that five Iranian Qods Force officers captured in Irbil last January be released. Iran has been pressing for their release, particularly since the release last week of 15 British sailors and marines captured by Iran in the Persian Gulf.

Meanwhile, the political block run by Iranian proxy Muqtada al Sadr has threatened to withdraw from the Iraqi government:

The statement from the Sadrists accused [Prime Minister] Maliki of "ignoring the will of the people," and said, "We reject these statements which coincide with the failure of security performance through not implementing the security plan in all parts of Baghdad...We discussed withdrawing from the Iraqi government, which will not be able to fulfill citizens' demands in the security and services fields," adding that they are "serious" in their consideration of withdrawing support.

This comes as U.S. and Iraqi security forces are conducting a campaign to dismantle Sadr's Mahdi Army in Diwaniyah. Sadr's political block has threatened to withdraw from the government in the past, only to back down from its threat.

Yesterday's clash in the central Baghdad neighborhoods of Fadhil and Sheik Omar in the Rusafa district resulted in 20 insurgents killed and another 30 wounded, according to a U.S. military spokesman. Four Iraqi soldiers were killed and 15 U.S. troops were wounded during the intense battle that raged throughout the day and involved Apache gunships, F-16s, and F-18s called in for close air support. Twelve of the U.S. soldiers wounded during the action returned to duty.

U.S. and Iraqi forces completed a five day operation in the town of Arab Jabour. The operation resulted in one terrorist killed and another 13 captured, along with the discovery of multiple weapons caches. "Included in the weapons caches found, Coalition Forces discovered numerous rocket-propelled grenades and launchers, several improvised explosive devices, thousands of anti-aircraft ammunition rounds and three buildings containing large amounts of IED-making materials," notes the Multinational Forces Iraq press release. On Wednesday morning, a follow-on raid netted "the suspected al-Qaeda in Iraq security emir of Arab Jabour" along with four of his associates.

In Anbar province, some signs of success can be seen in the cities that served as insurgent havens in the past. Al Jazeera reports the city of Hit (or Hiyt) has seen a marked decrease in violence ver the past month. "The guns in the city... have finally fallen silent, thanks to the efforts of local administrators and security forces." The turn around in Hit is credited to the return of the Iraqi police in mid March, and the efforts of Sheikh Abdul Sattar Abu Risha, the leader of the Anbar Salvation Council. Security has been tightened in the city and local elections were held on April 4.