Source: A.A. Image
On August 7, 1942, the 1st. Marine Division, 2nd. Marine Division, the 23rd. Infantry Division (the “American Division”), the 25th. Infantry Division, and other U.S. Forces commenced landings on the island of Guadalcanal. It was the opening salvo by the Allies who were now going on the offensive against the Japanese in the Pacific Theater. The Battle of Guadalcanal, code-named Operation Watchtower, raged for over 6 months, finally ending with an Allied victory on February 9, 1943. The Japanese forces who had been stationed on Guadalcanal since May 1942 were overwhelmed by the initial landings and subsequent battles. The Japanese high command had not expected such an attack and after the shock of it wore off, set about plans to land forces on Guadalcanal and evict the Allied forces from the island. Between August 18, 1942 through November 5, 1942, the Japanese thrust the 2nd. Infantry Division (nicknamed Isamu Heidan, the “Courageous Division”), the remains of the 38th. Infantry Division (nicknamed Numa Heidan, the “Swamp Division”), and elements of the 38th. Brigade onto the island in an effort to defeat Allied forces. In the end, it was all for naught. On February 7, 1943, the Japanese evacuated what forces they could, 10,200 in all, and left Guadalcanal in Allied hands for good. The Japanese lost 19,200 dead of which 8,500 were from combat with the rest dying from malnutrition and disease. The Allies also paid a heavy price with 7,100 dead with another 7,789 wounded.
Today, the jungles of Guadalcanal remain littered with the debris of war. Some of it is vandalized or stolen by treasure seekers. But, some of the remains of the campaign have been collected together and preserved at the Vilu War Museum. Situated on grounds an hour away and west of the city of Honiara on Guadalcanal, the museum is difficult to find as there is little in the way of signage or promotion to direct visitors to it. Scattered about the property are relics of the conflict, located and brought to the land in the 1950s and 1960s by the current owner's father-in-law. Among the open air displays are these two Type 96 150mm howitzers.
Development of the Type 96 began in 1920 as a replacement for the Type 4 150mm howitzer that had been in service since 1915. However, the new howitzer was not completed in prototype form until 1934 and even then, changes to the design would not see it put into production until 1937. A total of 440 examples were built and it never did replace the Type 4 which was still in service with the Imperial Japanese Army and would remain so until the end of the war. According to U.S. Intelligence sources (namely from the October 1944 dated manual TM-E 30-480), the Type 96 was considered an excellent gun in design, construction, and effectiveness. The Type 96 was able to fire an 80lb. high-explosive projectile out to a range of 6.2 miles and a good crew could maintain a rate of fire of six to eight rounds per minute. The Type 96 had a maximum elevation of 75 degrees, which was much higher than contemporary howitzers in the same caliber. This elevation, however, could only be achieved if a pit was dug beneath the breech to allow for loading. Without the pit, the maximum elevation was 45 degrees. The Type 96 used the same ammunition as the Type 4 which simplified logistics in regards to supply. The museum's Type 96 examples are devoid of the rubber shod, wooden wheels and the breech locks are missing. This may have been done by the Japanese prior to evacuating the island and thus rendering the guns useless or they may have been removed as a means to demilitarize the guns by Allied forces.
It is difficult to guess to what unit these guns belonged but it is possible to make an educated guess. The 2nd. Infantry Division included the 2nd. Artillery Regiment. However, the artillery regiments of infantry divisions did not utilize heavy guns like the Type 96. Instead, they were often equipped with 75mm guns, such as the Type 95. The 38th. Infantry Division included the 38th. Mountain Gun Regiment but artillery units such as these, by this time, were equipped with the Type 94 or Type 41 75mm mountain gun. This, then, leaves the 4th. Artillery Regiment which was under the 35th. Brigade. While the 35th. Brigade also had the 10th. Mountain Gun Battalion and the 20th. Mountain Gun Battalion, neither was equipped with the Type 96 and so only the 4th. Artillery Regiment is left. The IJA utilized several non-divisional forces and included in these was the medium artillery regiment. Unlike regular divisional artillery regiments, often, these independent artillery regiments only contained two battalions rather than three. Such medium artillery regiments were equipped with twenty-four Type 96 howitzers. If the guns did indeed belong to the 2nd. Division, this would assume that the 2nd. Artillery Regiment was a mixed field artillery regiment in which one of the three battalions was a medium artillery battalion equipped with seven Type 96 guns. The only other option was that the 2nd. Division was considered a “strengthened division” which meant that the unit's artillery assets would be increased to include a medium artillery battalion but there is no documentation that I found which says when the 2nd. Division deployed to Guadalcanal, it was a strengthened division.
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