|With the Cold War in full bloom, design of heavy tanks for the United States Army increased in an effort to mimic the success of the World War Two / Korean War-era M26 Pershing Heavy Tank.|
Despite the formidable array of arms, the system was dogged by reliability problems, a short road range and its sheer size. In the temperate and hilly terrain of Europe, the M103 faired below expectations. It's size alone made the system very difficult to conceal along the Cold War fronts throughout Europe. A new engine, bringing the road range from the measly 80 miles to over 300 miles was implemented in what would become the M103A2 but it was not meant to be. The M103 was dissolved from service with the United States Army in a few short years, bringing an end to the new generation of M103 Heavy Tank.