The Swansea Blitz was the heavy and sustained bombing of Swansea by the German Luftwaffe from 19 to 21 February 1941. A total of 230 people were killed and 397 were injured. Swansea was selected by the Germans as a legitimate strategic target due to its importance as a port and docks and the oil refinery just beyond, and its destruction was key to Nazi German war efforts as part of their strategic bombing campaign aimed at crippling coal export and demoralizing civilians and emergency services. PRA planning With the passing of the Air Raid Precaution Act of 1937, Swansea Council was responsible for instigating civil defence measures to protect the local population of 167,000 people. The local authority looked into building communal air raid shelters and setting up the necessary rescue and fire services. With the threat of war with Germany growing towards the end of the 1930s, Swansea council had built over 500 communal air raid shelters as well as providing Anderson shelters for domestic premises. With the outbreak of war in September 1939, the pace of providing shelters increased further. To complement the already-built communal shelters, the council requisitioned cellars and basements as makeshift shelters. Those with gardens often built Anderson shelters to take refuge in. However, not everyone was so fortunate, and others had to use crowded public shelters. In late 1940, Morrison shelters were introduced, which were not much more than a steel table to hide under inside the house. Others made a nightly trek to nearby rural areas, sleeping in tents, cars, or even on the beach. Bombing raids First raid, June 1940 The first air raid on Swansea commenced at 3.30 am on 27 June 1940. An initial marker flare was dropped by a Luftwaffe plane, and the following bombers dropped high explosives to the east of the city centre in the Danygraig residential area. The raid was relatively light, with no casualties reported to the ARP controllers. A number of unexploded bombs were discovered in the Kilvey Hill area. The Three Nights' Blitz Through the rest of 1940, Swansea was targeted by single and small groups of enemy bombers. There were several small-scale raids in January 1941, but the worst bombing period occurred over three nights on 19, 20, and 21 February 1941. This period, to become known as the Three Nights' Blitz, started at 7.30 pm on 19 February. On the