The controversy over the trampling of the American flag in Baghdad is no longer about a piece of cloth. It is becoming a serious political test for Prime Minister Ali Faleh al-Zaidi, the Popular Mobilization Forces, and the Iraqi state itself.

On October 4, Iraqi authorities announced that people involved in driving and walking over the U.S. flag during the “Sovereignty Day” events had been arrested on the direct orders of the commander-in-chief. The government justified the move by saying Iraq has a legal and diplomatic obligation to respect the symbols of friendly states.

But politically, this is explosive.

These celebrations were held precisely to mark the end of the U.S.-led coalition’s military mission. Many of the men now facing investigation belong to a political and social environment that spent years fighting what it regarded as foreign occupation. To arrest them immediately after a ceremony celebrating Iraqi sovereignty inevitably creates the impression among many Iraqis that Washington’s flag is receiving more protection than Iraqi political expression.

And anger is no longer theoretical. Demonstrations have already been reported in Basra demanding the detainees’ release, with protesters burning American and Israeli flags and even images of the prime minister.

There is also an important legal point that must not be distorted.

Al-Zaidi did not simply invent a new two-year prison sentence. Article 227 of Iraq’s Penal Code already criminalizes publicly insulting a foreign state or its flag under certain circumstances and provides for detention of up to two years or a fine. The law also states that prosecution under this article requires written authorization from the Minister of Justice.

But the existence of a law does not end the human-rights debate.

Iraq’s own Constitution guarantees freedom of expression in Article 38. A democratic state must therefore ask whether arrest and imprisonment are truly necessary and proportionate responses to an act of political symbolism that harmed no person.

You can dislike burning or trampling flags. You can call it provocative, offensive or politically foolish.

But putting people behind bars for insulting the symbol of a foreign government is an entirely different matter.

For many Iraqis, the American flag is associated with the 2003 invasion, occupation, Abu Ghraib, years of warfare and a period that transformed the country. The state cannot pretend that this historical memory simply disappears because diplomatic protocol requires cordial relations with Washington.

Reports circulating in Iraqi media and factional circles have identified Sayyid Dargham Abu Rghif among those detained.

Since his detention gas been confirmed, it is likely to become an even larger rallying point inside the Hashd and among groups already furious with the government’s decision.

And here comes the uncomfortable question of equality before the law.

Many Iraqis are asking: if insulting the American flag requires immediate arrests, what happens when the Iraqi flag itself is burned or desecrated for example in Kirkuk ?

Sovereignty does not mean exchanging one form of external domination for a domestic government frightened of diplomatic embarrassment.

It means an Iraqi judiciary that acts independently.

It means due process.

It means equal application of the law.

And it means allowing Iraqis space to express anger at foreign powers without treating every provocative political gesture as a security crime.

Al-Zaidi now faces a choice.

He can de-escalate the situation through transparent judicial procedures and proportionality, or allow this case to become something much bigger: a confrontation between the government and a constituency that believes people who fought for Iraq are being arrested to protect the dignity of the flag of the very power they once fought.

That would be an extraordinarily dangerous political message to send in post-coalition Iraq.