Rome, along with Vatican City, was bombed several times during 1943 and 1944, primarily by Allied and to a smaller degree by Axis aircraft, before the city was liberated by the Allies on June 4, 1944. Pope Pius XII was initially unsuccessful in attempting to have Rome declared an open city, through negotiations with U.S. President Franklin D. Roosevelt via Archbishop (later Cardinal) Francis Spellman. Rome was eventually declared an open city on August 14, 1943 (a day after the last Allied bombing raid) by the defending Italian forces.
The first bombing raid was on July 19, 1943, when 690 aircraft of the United States Army Air Forces (USAAF) flew over Rome and dropped 9,125 bombs on the city. Though the raid targeted the freight yard and steel factory in the San Lorenzo district of Rome, Allied bombs also struck the district's apartment blocks, damaging the Papal Basilica and killing 1,500 people. Pius XII, who had previously requested Roosevelt not to bomb Rome due to "its value to the whole of humanity", paid a visit to the affected regions of the district; photographs of his visit later became a symbol of anti-war sentiments in Italy. The Allied bombing raids continued throughout 1943 and extended into 1944. In the United States, while the majority of the American media supported the bombing raids, many Catholic newspapers condemned them.
In the 110,000 sorties that comprised the Allied Rome air campaign, 600 aircraft were lost and 3,600 air crew members died; 60,000 tons of bombs were dropped in the 78 days before Rome was captured by the Allies on June 4, 1944.
On 25 July 1943, after Allied forces had conquered the Italian possessions in Africa and had taken Sicily, the Fascist Grand Council removed Benito Mussolini from power. The Kingdom of Italy at first remained an ally of Nazi Germany, but in less than two months secured an armistice with the Allies, signed on 3 September and announced on 8 September. Germany, which had discovered what was afoot, quickly intervened and took military control of most of Italy, including Rome, freed Mussolini and brought him to the German-occupied area to establish a new pro-Axis regime known as the Italian Social Republic.
Correspondences between Pius XII and Roosevelt
Following the first Allied bombing of Rome on May 16, 1943 (three months before the German Army occupied the city), Pius XII wrote to Roosevelt asking that Rome "be spared as far as possible further pain and devastation, and their many treasured shrines… from irreparable ruin."
On June 16, 1943, Roosevelt replied:
Attacks against Italy are limited, to the extent humanly possible, to military objectives. We have not and will not make warfare on civilians or against nonmilitary objectives. In the event it should be found necessary for Allied planes to operate over Rome, our aviators are thoroughly informed as to the location of the Vatican and have been specifically instructed to prevent bombs from falling within Vatican City.
The bombing of Rome was controversial, and General Henry H. Arnold described Vatican City as a "hot potato" because of the importance of Catholics in the U.S. Armed Forces. British public opinion, however, was more aligned towards the bombing of the city, due to the participation of Italian planes in The Blitz over London. H.G. Wells was a particularly vocal proponent of doing so.
Vatican City maintained an official policy of neutrality during the war. Both Allied and Axis bombers made some effort not to attack the Vatican when bombing Rome. However, Vatican City was bombed on at least two occasions during the war, once on November 5, 1943, and once on March 1, 1944. There are varying accounts regarding which side was responsible for both incidents. Both Vatican bombings occurred while Rome was under German occupation.
On November 5, 1943, a single plane dropped four bombs on the Vatican, destroying a mosaic studio near the Vatican railway station and breaking the windows of the high cupola of St. Peter's, and nearly destroying Vatican Radio. There were no fatalities.
An eyewitness account written in 1944 by Monsignor Domenico Tardini, an Italian priest and later a cardinal, states:
The (first) bombing of the Vatican occurred on 5 November 1943 at 20:10. It was a very clear and cloudless evening. The moon made visibility excellent. For over half an hour an aeroplane was heard circling insistently over Rome and especially the Vatican. At about 8:10, while an Allied squadron passed over the Vatican, the aeroplane that until then had been circling over Rome dropped four bombs and flew away. The bombs fell in the Vatican Gardens: the first near the receiving Radio, another near the Government building, a third on the mosaics workshop, the fourth near the building of the Cardinal Archpriest. If they had fallen a very few metres off, they would have hit the Radio, the Government building, that of the Tribunals (where the diplomats were housed), and that of the Archpriest. They caused considerable damage, for all the windows were blown to pieces. There were no human casualties.
General opinion, and general indignation, blamed the Germans and, perhaps more, the Republican Fascists. The latter view was reinforced by notes about a telephone conversation of Barracu (Undersecretary for Home Affairs) that a telephone operator (with whom I am not acquainted) gave to the Holy Father. However, some months later, Monsignor Montini received from Monsignor Carroll, an American of the Secretariat of State, who was in Algiers to organize an information service for soldiers and civilians, a letter in which it was stated clearly that the bombs had been dropped by an American. 5 November is for England, Father Hughes told me, an anti-Pope day. When Monsignor Carroll came to Rome in June 1944, he answered a question of mine by telling me that the American airman was supposed to have acted either to make a name for himself or out of wickedness. Monsignor Carroll did not know whether the delinquent had been punished. Perhaps we will know, when the war is over, what really happened.
The message from Carroll of which Tardini wrote as being addressed to Montini was in reality addressed to Luigi Maglione, Cardinal Secretary of State. It read: In a conversation with the American Chief of Staff during the past week I was informed very confidentially that they feel that the bombing of the Vatican is probably attributable to an American pilot who lost his way; in fact, another American pilot reported seeing an Allied plane dropping its load on the Vatican. The General expressed his sincere regret and gave assurances that strict precaution would be taken to avoid a repetition of this incident.
Official assurance that no American plane had in fact dropped bombs on Vatican City was given by the United States authorities.
The German and British authorities gave similar assurances regarding aircraft of their countries. Aware that the bombs used were British, the British pointed out that this proved nothing as they could have been taken from captured ordnance, and used for precisely that purpose.
Publications in the 21st century