Pope Francis has called on Iraq’s Christians to forgive the injustices committed against them by Islamic extremists.

The call came as he visited the wrecked shells of churches and met ecstatic crowds in the community’s historic heartland, which was nearly erased by the so-called Islamic State group’s horrific reign.

At each stop in northern Iraq the remnants of its Christian population turned out, jubilant and decked out in colourful dress, though heavy security prevented Francis from plunging into the crowd as he would normally do.

Nonetheless, they seemed simply overjoyed that they had not been forgotten. It was a sign of the desperation for support among an ancient community uncertain whether it can hold on.

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Pope Francis is shown the devastation of the four-church complex at Hosh al-Bieaa Church Square where he led a prayer session in Mosul (Andrew Medichini/AP)

Traditionally Christian towns dotting the Nineveh Plains of the north were emptied as Christians – as well as many Muslims – fled the Islamic State group’s onslaught in 2014. Only a few have returned to their homes since the defeat of IS in Iraq, which was declared four years ago, and the rest remain scattered elsewhere in Iraq or abroad.

Bells rang out in the town of Qaraqosh as the Pope arrived. Speaking to a packed Church of the Immaculate Conception, Francis said “forgiveness” is a key word for Christians.

“The road to a full recovery may still be long, but I ask you, please, not to grow discouraged. What is needed is the ability to forgive, but also the courage not to give up.”

The Qaraqosh church has been extensively renovated after being vandalised by IS militants during their takeover of the town, making it a symbol of recovery efforts.

For the Vatican, the continued presence of Christians in Iraq is vital to keeping alive faith communities that have existed there since the time of Christ. The population has dwindled from around 1.5 million before the 2003 US-led invasion that plunged the country into chaos to just a few hundred thousand today.

Pope Francis surrounded by shells of destroyed churches
Pope Francis surrounded by shells of destroyed churches (Andrew Medichini/AP)

Francis’s visit to Iraq aimed to encourage them to stay and help rebuild the country and restore what he called its “intricately designed carpet” of faith and ethnic groups.

In striking images earlier on Sunday, Francis, dressed in white, took to a red carpet stage in a square in the north’s main city, Mosul, surrounded by the grey hollowed-out shells of four churches, nearly destroyed in the war to oust the Islamic State group from the city.

It was a scene that would have been unimaginable years earlier. Mosul, Iraq’s second largest city, was at the heart of the IS so-called “caliphate” and witnessed the worst of the group’s rule inflicted on Muslims, Christians and others, including beheadings and mass killings.

“How cruel it is that this country, the cradle of civilisation, should have been afflicted by so barbarous a blow,” Francis said, “with ancient places of worship destroyed and many thousands of people – Muslims, Christians, Yazidis – who were cruelly annihilated by terrorism – and others forcibly displaced or killed.”

He deviated from his prepared speech to address the plight of Iraq’s Yazidi minority, which was subjected to mass killings, abductions and sexual slavery at the hands of IS.

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Pope Francis meets Iraq’s leading Shiite cleric, Grand Ayatollah Ali al-Sistani in Najaf (Vatican Media/AP)

“Today, however, we reaffirm our conviction that fraternity is more durable than fratricide, that hope is more powerful than hatred, that peace more powerful than war,” he said.

The square where he spoke is home to four different churches – Syriac Catholic, Armenian-Orthodox, Syriac Orthodox and Chaldean – each left in ruins.

IS inflicted atrocities against all communities, including Muslims, during its three-year rule across much of northern and western Iraq. But the Christian minority was hit especially hard.

The militants forced them to choose among conversion, death or the payment of a special tax for non-Muslims. Thousands fled, leaving behind homes and churches that were destroyed or commandeered by the extremists.

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Children in traditional dress wave Iraqi flags as they await the arrival of Pope Francis in Mosul (Andrew Medichini/AP)

Mosul, Iraq’s second largest city, became IS’s bureaucratic and financial backbone. It was from Mosul’s al-Nuri mosque that then-IS leader Abu Bakr al-Baghdadi made his only public appearance when he gave a Friday sermon calling on all Muslims to follow him as “caliph”.

It took a ferocious nine-month battle to finally free the city in July 2017, during which between 9,000 and 11,000 civilians were killed, according to an AP investigation at the time. Al-Baghdadi was killed in a US raid in Syria in 2019.

The war left a swath of destruction across Mosul and the north, and many Iraqis have been left on their own to rebuild amid a long financial crisis.

The Rev Raed Kallo was among the few Christians who returned to Mosul after IS was defeated.

“My Muslim brothers received me after the liberation of the city with great hospitality and love,” he said on stage before the pontiff.

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An Iraqi Christian cleric oversees preparations for welcoming Pope Francis at the main stadium in Irbil, Iraq (Hadi Mizban/AP)

Before IS, he had a parish of 500 Christian families. Most emigrated abroad, and now only 70 families remain, he said. “But today I live among two million Muslims who call me their Father Raed,” he said.

Gutayba Aagha, the Muslim head of the Independent Social and Cultural Council for the Families of Mosul, encouraged other Christians to return.

“In the name of the council I invite all our Christian brothers to return to this, their city, their properties and their businesses,” he said.

Throughout his four-day visit, Francis has delivered a message of inter-religious tolerance and fraternity to Muslim leaders, including in an historic meeting on Saturday with Iraq’s top Shiite cleric, Grand Ayatollah Ali al-Sistani.

At Qaraqosh, Francis urged its residents to continue to dream, and forgive.

People wait for Pope Francis to celebrate mass
People wait for Pope Francis to celebrate mass (Andrew Medichini)

“Forgiveness is necessary to remain in love, to remain Christian,” he said.

Public health experts had expressed concerns ahead of the trip that large gatherings could serve as super-spreader events for coronavirus in a country suffering from a worsening outbreak where few have been vaccinated.

Later, thousands of people filled a sports stadium in the northern city of Irbil for Francis’ final event in his visit to Iraq: an open-air mass featuring a statue of the Virgin Mary that was restored after Islamic militants chopped of the head and hands.

The statue was transported from the church in Keramlis, a Christian village on the Nineveh Plains, to a place of honour on the altar for Sunday’s mass.

Pope Francis celebrates mass
Pope Francis celebrates mass (Andrew Medichini/AP)

Keramlis, an ancient Assyrian town less than 18 miles from Mosul, fell to IS in August 2014, two months after the extremists took Mosul and its surrounding areas, sending most inhabitants fleeing. In Keramlis, they destroyed the interior of St Adday church and decapitated the statue of the Madonna.

An estimated 10,000 people erupted in cheers when Francis arrived for the mass and did a lap around the track in his open-sided popemobile, the first and only time he has used it on this trip due to security concerns.

Few in the crowd wore face masks, as was the case during all of Francis’ visits on Sunday in northern Iraq.