Biden arrived Tuesday in a surprise visit to Iraq at a pivotal time as the last of the American troops withdraw, and the U.S. must establish a new relationship with a country that is home to billions of barrels of oil and more closely aligned with neighboring Iran than the U.S. would like.
In comments surrounding his meetings with Prime Minister Nouri al-Maliki, Biden stressed that the U.S. and Iraq will continue to have a relationship long after the American troops have left the country.
"Our troops are leaving Iraq, and we are working on a new path together, a new face of this partnership," he added. "This is marking a new beginning of the relationship that will not only benefit the United States of America and Iraq. I believe it will benefit the region and will benefit the world."
Biden said that people in both countries have had to overcome misperceptions about the relationship. He said people in the U.S. still ask whether it is worth it to spend so much energy and money in Iraq, a country where 4,485 American military personnel have died and tens of thousands of Iraqis have been killed.
"We have jointly demonstrated, it is worth it, it is worth it — as costly and as difficult and sometimes as controversial as it is," he said.
Seeking to counter skepticism about why the U.S. will still have such a large presence in Iraq — the largest American embassy in the world — Biden said the U.S. needs to have experts in a wide range of areas "on hand, in country." The U.S. will also have thousands of security contractors to protect the embassy's facilities in Baghdad, Kirkuk, Irbil and Basra and diplomatic personnel.
Many Iraqis, suspicious of American intentions in the region, have wondered why the U.S. is keeping such a large presence here, while Americans have questioned the prudence of spending money in Iraq while the U.S. is experiencing financial problems of its own.
Iraq's development, Biden said, "will bring stability to the region. That is our sole interest in Iraq. Period. End of story."
Biden also stressed that the new relationship with Iraq will also include a robust security relationship, although few details of that were given.
Baghdad and Washington failed earlier this year to come to an agreement on keeping a small American military presence in Iraq next year, meaning all U.S. forces must be out of the country by Dec. 31. The talks faltered on Baghdad's insistence that the U.S. troops be subject to Iraq's legal system, something that Washington adamantly refused.
Some 13,000 U.S. troops remain, down from a one-time high of about 170,000.
Biden warned that there "will still be security concerns, but we are confident that your government is fully capable of handling those internal security concerns."
Al-Maliki said the meetings Wednesday were designed to lay the ground for future cooperation and partnership.
"We've passed a very difficult page of confronting al-Qaida and terrorism in Iraq during which we achieved joint success ... We made many sacrifices from both sides," al-Maliki said.
Alluding to the turmoil going on in the Middle East, al-Maliki also said the region is "sensitive" and that as changes occur, there should be cooperation between the U.S. and Iraq.
One area in which Baghdad and Washington have been on different sides of the argument is Syria. While Washington has harshly criticized Syrian President Bashar Assad's bloody crackdown that has killed more than 3,500 people so far, Baghdad has taken a more conservative approach and not supported Arab League sanctions against its western neighbor.
The White House said Biden is expected to meet with Iraqi officials, including President Jalal Talabani and Parliament Speaker Osama al-Nujaifi, during what is his eighth visit to Iraq since being elected.
The White House said he is also to take part in a ceremony commemorating the sacrifices of U.S. and Iraqi troops during the eight-year war.
But he will almost certainly not be meeting with some of al-Maliki's key allies, government leaders loyal to anti-American cleric Muqtada al-Sadr. Al-Maliki is navigating a tough position of trying to maintain a relationship with the U.S., from whom Iraq is buying billions of dollars in weapons in the coming years, and al-Sadr, whose backing last year ensured al-Maliki a second term.
Followers of al-Sadr rallied in Basra and Baghdad on Wednesday, chanting "Biden get out of Iraq," and "No to America."
Security was tight for Biden's visit, which was not announced ahead of time.
In the week leading up to the vice president's trip, Iraq has seen an uptick in violence that has renewed concerns about the abilities of the country's security forces. Late Wednesday, gunmen stormed the house of a anti-al-Qaida cleric in Samarra, 60 miles (95 kilometers) north of Baghdad, an Iraqi security official said. The gunmen killed five people inside including the cleric.
The official spoke on condition of anonymity because he was not authorized to speak to the media.
Associated Press writers Qassim Abdul-Zahra in Baghdad contributed to this report.