This post continues on the theme introduced in post 1 here.
The growth in technological firepower was certainly evident in the Korean War. Roy Appleton in his fascinating work, East of Chosin (see previous post here) brings to life the murderous effect of mobile artillery including the M19 full-track (dual-40) below as used by trained American soldiers in their desperate defense of positions east of the Chosin Reservoir in 1950.
The two 40-mm Bofors anti-aircraft guns which were mounted on revolving turret wreaked havoc among attacking Chinese soldiers as long as ammunition held out as did quad-50s.
That said, the effects of the extreme cold and lack of fuel also showed the weapon’s vulnerability as a mobile gun platform. Tanks were used by the American’s as well although Appleman covers well their limitations on icy terrain in Korea. The American’s use of 75-mm recoilless rifle (below) was also deadly, especially when in the hands of trained gunners. Likewise, the use by Chinese soldiers of American-made Thompson submachine guns showed the destructive power of automatic small arms against U.S. forces.
More in part 3.