The State of Baseball Immediately After the War
At the end of the war in August 1945, Japanese professional baseball was in a devastating state. League play had been suspended in 1944 during wartime, and many players had been sent to the battlefront. Promising players including Eiji Sawamura died in combat, dealing a severe blow to the baseball world in terms of talent. Stadiums were also unusable due to air raid damage and conversion to military facilities. While Korakuen Stadium suffered relatively minor damage, Koshien Stadium was requisitioned by the US military, and stadiums across the country lay in ruins. Amid food shortages, public attention was first directed toward survival, with sports as entertainment being secondary. Yet even in this desperate situation, baseball officials were quietly working toward resuming league play.
GHQ's Sports Policy and Baseball's Role
The Supreme Commander for the Allied Powers (GHQ) emphasized sports promotion as part of its occupation policy. GHQ's Civil Information and Education Section (CIE) positioned sports as a tool for democratic education, seeking to utilize them for democratizing Japanese society. Baseball was given particular importance because the spread of this American-born sport was seen as a potential cultural bridge between Japan and the United States. GHQ actively supported the resumption of Japan's professional baseball league, facilitating the release of requisitioned stadiums and priority allocation of supplies. As early as November 1945, an East-West exhibition game was held, and the pennant race resumed the following year in 1946. This rapid resumption would not have been possible without GHQ's backing. Baseball was a symbolic embodiment of 'soft power' in occupation policy.
Stadium Reconstruction from the Ruins and Fan Enthusiasm
Postwar stadium reconstruction symbolized the recovery of Japanese society. When the league resumed in 1946, usable stadiums were limited, and games continued on temporary stands and poorly maintained grounds. However, fan enthusiasm transcended the condition of the facilities. In days spent standing in food ration lines, watching baseball was one of the few entertainments available to people and a symbol of hope. Korakuen Stadium was packed to capacity daily, with long queues forming for tickets. During this period, it was not uncommon for attendance to far exceed stadium capacity. Full-scale stadium reconstruction progressed from the 1950s onward, with the return of Koshien Stadium (1947), renovation of Korakuen Stadium, and gradual improvement of regional stadiums. Stadium reconstruction also functioned as a symbol of community recovery.
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The Legacy of Occupation-Era Baseball
The baseball revival during the occupation period left an enormous legacy for postwar Japanese society. First, baseball established its position as the national sport. Already popular before the war, baseball penetrated an even broader audience through the occupation period and reached the pinnacle of national entertainment with the start of television broadcasting in 1953. Second was the introduction of the two-league system in 1950. Under GHQ's influence, a two-league system modeled after MLB's organizational structure was adopted, establishing the parallel Central League and Pacific League framework. Third was the deepening of Japan-US baseball exchange. MLB team visits to Japan that began during the occupation period became the foundation for subsequent Japan-US baseball exchanges. Occupation-era baseball was not merely a sports revival but was deeply involved in shaping postwar Japan's cultural identity.
Returning Veterans and the Rise of a New Generation
Many players returning from military service found their physical condition diminished after years of duty, requiring time to regain prewar skill levels. Meanwhile, young players who had honed their abilities in student baseball during wartime rapidly entered the professional ranks, accelerating generational change. Between 1946 and 1949, mixed rosters of returning veterans and newcomers characterized every team. Takehiko Bessho excelled with Nankai after demobilization, while among the younger generation, Tetsuharu Kawakami joined Yomiuri in 1947 and won the batting title. The returning veterans brought mental toughness forged in combat, while the younger players contributed physical flexibility, creating team diversity. This fusion of generations rapidly elevated the competitive standard of postwar professional baseball, producing sufficient player depth to sustain 15 teams when the two-league split occurred in 1950.
Radio Broadcasting and the Explosive Growth of Baseball Popularity
Radio broadcasting played a decisive role in expanding baseball's popularity during the occupation period. NHK began full-scale live radio coverage of professional baseball in 1946, and by 1947 a system for broadcasting all games was established. As radios spread into households, baseball broadcasts became the centerpiece of evening family gatherings. The estimated audience rating for the 1947 Japan Series (then called the Japan Championship Series) reportedly exceeded 60 percent. Players' names and voices reached living rooms nationwide through radio, generating fan enthusiasm for star players. Radio broadcasts made professional baseball accessible to people in rural areas, raising momentum for the creation of regional teams. The bond between radio and baseball formed during this period continued even after the start of television broadcasts in 1953, becoming the foundation of Japan's distinctive baseball broadcasting culture.
Exhibition Games Against Occupation Force Teams
During the occupation period, numerous exhibition games were played between US military baseball teams stationed in Japan and Japanese professional teams. High-level military teams were organized at bases under GHQ, and from 1946 to 1951, matches were held primarily as unofficial games. These contests served as both technical exchanges and public relations events showcasing Japan-US friendship. Japanese players learned American power hitting and pitching techniques firsthand, applying them to improve their own skills. The influence was particularly notable in breaking ball grips and baserunning techniques. In 1949, the San Francisco Seals (then a PCL team) visited Japan and played seven games against a Japanese all-star team. This series had a profound impact on Japanese baseball, making the technical gap with MLB apparent while also pointing the way toward future international exchange.