Operation Carthage, on 21 March 1945, was a British air raid on Copenhagen, Denmark during the Second World War which caused significant collateral damage.

Once approval had been given, planning for the raid took several weeks; scale models of the target building and the surrounding city were built for use by pilots and navigators in preparation for a very low-level attack.

[2] Thirty RAF Mustang fighters gave air cover from German aircraft and these also attacked anti-aircraft guns during the raid.

The raid was carried out at rooftop level and during the first attack, a Mosquito hit a lamp post, damaging its wing and the aircraft crashed into the Jeanne d'Arc School, about 1.5 km (0.93 mi) from the target, setting it on fire.

Fifty-five German soldiers, 47 Danish employees of the Gestapo and eight prisoners died in the headquarters building.

On 14 July 1945, remains of an unidentified male casualty were recovered from the ruins of the Shellhus and transferred to the Department of Forensic Medicine of the University of Copenhagen.

A monument in place of the school was inaugurated on March 23, 1953, to commemorate the children and adult civilians who died on the day.