World War II Data

Conventional Bombing Damage to Japanese Cities in WW2

Mike Guina — Fri, 25 Nov 2022 00:24:29 +0000

During World War II, conventional bombing raids inflicted devastating damage on Japanese cities. Major cities such as Tokyo, Osaka, Nagoya, Yokohama, and Kobe were all targeted. The first United States Army Air Force (USAAF) raid on Japan’s homeland was the Doolittle Raid on April 18, 1942. This was a one-off operation with sixteen B-25 Mitchells launched from the USS Hornet aircraft carrier. Minimal damage occurred but it shocked the Japanese people and was a morale booster for American citizens.

Sixty-three cities saw more than ten percent destruction during the war.

B-29 Superfortress Range

Development of the B-29 Superfortress kicked the door open for the USAAF to systematically bomb Japan. With a range of 1,500 miles, it completed the first major raid since the Doolittle Raid on June 15, 1944. This raid flew out of China which proved to be a logistical challenge. However, it was the captured of Guam and Tinian that truly brought the Japanese mainland within range of the B-29, Superfortress. Logistically the islands were strategically better as the originating points. Bombing raids from these islands began in late 1944.

Damage Extent

Twenty-eight Japanese cities suffered more than 50 percent damage due to conventional bombing. Due to construction technique many Japanese cities were very susceptible to fire bombings which were used later in the war. The main reason for the bombing raids on Japanese cities was to weaken the country’s industrial capacity and morale. To achieve this, bombers would drop high explosives, incendiary bombs and napalm, targeting industrial and residential areas. The goal of the raids was to cause as much destruction as possible, in the hope of eventually forcing Japan to surrender. It is estimated that 500,000 Japanese citizens died in the bombing raids and another 5,000,000 were made homeless.

The most common type of raid was area bombing. This involved dropping large numbers of bombs over a wide area to create a blanket of destruction. The firebombing of Tokyo on the night of March 9-10, 1945, is one of the most well-known examples of area bombing. In this raid, nearly 300 B-29 Superfortress bombers dropped some 1,700 tons of high explosive and incendiary bombs, destroying an estimated 16 square miles of the city. High explosive bombs were used first to blow out windows and followed up with the incendiary bombs. Finally delayed fused high explosives were also included to deter firefighting efforts.

Other, less destructive, types of bombing were also used. Precision bombing, for example, involved targeting specific military and industrial sites, rather than entire cities. This was done using smaller, more agile aircraft such as the P-51 Mustang, the A-20 Havoc, and the B-25 Mitchell.

The conventional bombing of Japanese cities was a major factor in the eventual surrender of Japan. These raids, along with the atomic bombings of Hiroshima and Nagasaki, had a devastating effect on the morale of the Japanese people, and forced the government to accept the terms of the Allies.

Conventional Bombing Damage to Japanese Cities in WW2 Data

The above graph can be downloaded as an image.

To download the data shown below from which the graph was developed click on the icon below corresponding to you desired format. Note: to ensure all data is downloaded choose the ‘All’ selection in the Show Entries dropdown list. Otherwise only the data visible on the screen will download.

wdt_ID	City	% area destroyed
1	Toyama	99.0%
2	Fukui	86.0%
3	Tokushima	85.2%
4	Fukuyama	80.9%
5	Kofu	78.6%
6	Kuwana	75.0%
7	Hitachi	72.0%
8	Nara	69.3%
9	Tsu	69.3%
10	Mito	68.9%

Source: Wikipedia. “Strategic bombing during World War II” https://en.wikipedia.org/wiki/Strategic_bombing_during_World_War_II, Data accessed on June 30, 2022

US Army Personnel in Philippine Islands: 30 Nov 1941

Mike Guina — Mon, 21 Nov 2022 19:36:32 +0000

With war about to break out the US had just over 31,000 officers, US enlisted men, and Philippine Scouts to defend over 7,600 islands that comprised the Philippines. There would be no time to reinforce these defenders once the hostilities broke out.

31,095 men to defend the island chain.

US Army Forces

On November 30, 1941, the United States Army had a significant presence in the Philippine Islands, which was then a territory of the United States. The US Army personnel in the Philippines consisted of approximately 10,000 regular Army soldiers, 8,000 Philippine Scouts (Filipino soldiers who served in the US Army), and 26,000 Philippine Commonwealth Army troops (Filipino soldiers under the control of the Philippine government).

The US Army was under the command of General Douglas MacArthur, who had been appointed as the Commander of US Army Forces in the Far East in July 1941. MacArthur was responsible for the defense of the Philippines, which was seen as a key strategic location in the event of a war with Japan.

US Preparedness

Despite the large number of troops in the Philippines, the US Army was not fully prepared for a war with Japan. There were shortages of weapons, ammunition, and other supplies, and the troops were not well-trained or well-equipped. There were several reasons why the US Army was not fully prepared for the Japanese attack on the Philippines:

Limited Resources

The US Army, the 19^th largest in the world, was spread thin across the globe, with troops stationed in other parts of the world. This meant that resources were limited, and the US Army had to prioritize where to allocate resources.

Underestimation of Japanese Capabilities

The US Army underestimated the capabilities of the Japanese military. They believed that the Japanese would not be able to mount a successful attack on the Philippines and were caught off guard when the Japanese launched a surprise attack.

Limited Intelligence

The US Army had limited intelligence about the Japanese military, and what they did have was often outdated or inaccurate. This made it difficult for the US Army to predict where and when the Japanese would attack.

Poor Planning

The US Army’s planning for the defense of the Philippines was flawed. They focused on defending the major cities and ports, rather than on defending the entire archipelago. This left many areas vulnerable to attack.

Shortages of Supplies

The US Army in the Philippines was short on supplies and equipment, including weapons, ammunition, and food. This made it difficult for them to mount an effective defense against the Japanese.

Japanese Attack

On December 8, 1941, the Japanese launched a surprise attack on the Philippines, just hours after attacking Pearl Harbor. The US Army and Philippine troops fought bravely, but were eventually forced to surrender on April 9, 1942, after months of intense fighting and suffering from disease and starvation. The capture of the Philippines was a major victory for Japan and a significant setback for the Allies in the Pacific Theater of World War II. The consequences of the US Army’s surrender in the Philippines were significant and far-reaching:

Loss of Territory

The surrender of the Philippines meant that the United States lost control of a major strategic location in the Pacific. The Japanese were able to use the islands as a base for further expansion and as a launching point for attacks on other Allied territories.

Prisoners of War

The US Army soldiers and Philippine troops who surrendered became prisoners of war. Many were forced to endure harsh conditions and brutal treatment at the hands of their captors, including the infamous Bataan Death March.

Propaganda Victory for Japan

The capture of the Philippines was a major propaganda victory for Japan. It demonstrated to the world that the Japanese could defeat a major Western power and strengthened their position in the Pacific.

Loss of Morale

The surrender of the Philippines was a significant blow to the morale of the US Army and the American people. It was a reminder that the war would be long and difficult, and that victory was not assured.

Retaliation

The surrender of the Philippines also led to a desire for revenge among many Americans. This desire for retaliation would later fuel the decision to drop atomic bombs on Japan.

Overall, the surrender of the Philippines was a significant setback for the Allies in the Pacific Theater of World War II and had far-reaching consequences for the war effort.

US Army Personnel in Philippine Islands: 30 November 1941 Data