Mr Biden will attend a ceremony marking the end of US combat operations US vice president Joe Biden makes an unannounced visit to Iraq ahead of the official end of the US combat mission there on 31 August.
The White House says Mr Biden’s visit “will reinforce the long-term US commitment to Iraq”.
The vice president will meet with Iraqi Prime Minister Nouri Al-Maliki.
Officials say Mr Biden will push for an end to the political deadlock that has taken hold in Iraq after the 7 March elections resulted in no clear winner.
More than five months later, a new government has yet to form. Insurgent attacks have spiked as the political situation founders.
The official purpose of Mr Biden’s visit is to represent the Obama administration at Wednesday’s “Change of Command and Change of Mission” ceremony.
President Obama will deliver a televised address to the American people about Iraq on Tuesday evening.
Mr Obama’s remarks are intended to mark the official end of combat operations, but analysts expect him to use the opportunity to make the case for continued operations in Afghanistan.
He is also expected to stress America’s continued resolve to advance stability and security for the Iraqi people.
Around 50,000 US troops will remain in Iraq and will focus on supporting Iraqi forces. They will not participate in combat missions without a request from Iraqi authorities.
This article is from the BBC News website. © British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.