The American President Joe Biden has announced an end to the hostilities of the US troops in Iraq.
Relations between the two countries would enter a "new phase", said Biden on Monday at the start of talks with Iraqi Prime Minister Mustafa al-Kadhemi in the White House.
The US would no longer be in combat missions in Iraq by the end of the year.
"Our cooperation against terrorism will continue in this new phase." The role of the United States is still to support Iraq in dealing with the jihadist militia Islamic State (IS), said Biden.
He did not give a specific figure for the future troop strength.
Al-Kadhemi is under great pressure in his own country.
Just a week ago, dozens of people were killed and many others injured in an IS attack in Baghdad.
At the same time, the influence of pro-Iranian militias in the country, which are demanding the withdrawal of around 2,500 US soldiers, is growing.
Pro-Iranian groups have carried out around 50 rocket and drone attacks on US bases in Iraq this year. Most of the US troops had already been withdrawn under Biden's predecessor, Donald Trump. The remaining soldiers officially act as advisors and trainers for the Iraqi army.