Iraqinfo-icon says it will under no circumstances permit the United Statesinfo-icon to build permanent military bases on its soil, which would be a violation of its sovereignty.

"Baghdadinfo-icon firmly rejects the construction of USinfo-icon military bases on its soil," said Iraqi Foreign Minister Ibrahim Jaafari at the end of an extended visit to Russiainfo-icon on Friday.

Iraq will "not stand on ceremony" when it comes to the protection of its sovereignty, he said.

He said that, back in 2014, when Baghdad asked for international help in fighting the Takfiri terrorist group of Daesh, it said the potential contribution had to meet the requirements of Iraq's sovereignty and independence.

Jaafari said Baghdad had made the matter clear that contributions to its counter-terrorism operations should not lead to the establishment of military bases or permanent foreign military presence in its territory.

"Iraq's sovereignty is our red line," the Iraqi foreign minister said.

He pointed to the presence of permanent US military bases in "South Koreainfo-icon, Turkeyinfo-icon, Japaninfo-icon, and many other worldinfo-icon countries" long after the end of World Warinfo-icon II and said the bases violated those countries' sovereignty.

According to US government data, there are about 9,000 American troops in Iraq. The US Department of Defense, though, puts the number at far lower.

In 2003, the US invaded Iraq to topple the then-regime of Saddam Hussein, who the US and Britaininfo-icon falsely claimed was in possession of weaponsinfo-icon of mass destruction. Former US President Barack Obama pulled out all US combat troops from Iraq in 2011, effectively ending the invasion and occupation of the Arab country.

But the destruction that the war had caused, including the decimation of the Iraqi security structure, allowed Daesh to emerge in 2014. In September that same year, the US led a number of its allies in launching an aerial bombardment campaign against purported Daesh targets in Iraq.

That coalition continues to be present in Iraq even as the Iraqi leadership announced the end of the war on Daesh in the country in December last year.

Last month, NATO even agreed to a US demand to deploy a larger military mission to Iraq.

Earlier, on Tuesday, Jaafari told reporters in Moscowinfo-icon that Baghdad was thoroughly considering purchasing Russia's surface-to-air S-400 missileinfo-icon defense systems.

"The issue is being studied in every detail," he said. "All necessary decisions aimed at strengthening Iraq will be made after that."

Late last month, the US warned Iraq through State Department spokeswoman Heather Neuert of the consequences of extending military cooperation with Russia and striking deals to purchase advanced weaponry, particularly the S-400 systems.

Neuert said Washington had contacted Baghdad and many other countries to explain the significance of the Countering Americainfo-icon's Adversaries through Sanctions Act (CAATSA) -- which targets Russia, Iraninfo-icon, and North Koreainfo-icon -- and possible consequences that would arise in the wake of defense agreements with Moscow.