Pope Francis left Rome on Friday to start a four-day trip to Iraq, his most risky foreign trip since his election in 2012 and the first visit by a pontiff to the country.
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An Alitalia airplane carrying the pope, his entourage, a security detail, and about 75 journalists, left Rome's Leonardo da Vinci airport for the 4-1/2-hour flight to the Iraqi capital, Baghdad.
Iraq is deploying thousands of additional security personnel to protect Francis during the visit, which comes after a spate of rocket and suicide bomb attacks raised fears for the Catholic leader's safety.
The 84-year-old will visit four cities, including the former Islamic State stronghold of Mosul, where churches and other buildings still bear the scars of conflict.
Francis will also visit Ur, birthplace of the prophet Abraham, who is revered by Christians, Muslims and Jews, and meet Iraq's top Shiite Muslim cleric, 90-year-old Grand Ayatollah Ali al-Sistani.