SummaryDeep devotion to the game of baseball has been tossed between the U.S. and Japan since its opening to the West in the late 1800s, and mirrors profound shifts in diplomacy between the two nations. Diamond Diplomacy charts this 150-year story revealing pivotal moments of an often-controversial duality that has existed throughout this history.
Directed By:Yuriko Gamo Romer
Written By:Yuriko Gamo Romer, Ken Schneider
Diamond Diplomacy: U.S. Japan Relations Through a Shared Love of Baseball
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Oct 14, 2025
88
Romer covers a lot of ground in this sometimes touching and even inspiring documentary. About all she misses is Japan’s invitation to participate in the Little League World Series, and its early dominance and ongoing success there.
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