On Saturday, a huge rally took place in Tokyo at which many called for an end to the American military presence in Okinawa.
Behind the scenes, American diplomats were working feverishly to preserve an agreement that would allow the troops to remain by moving them to a less populated part of the island.
As Tom Metcalf of Al Jazeera English reports, the future for U.S. troops in Japan is uncertain.
For more about U.S. troops in Okinawa, Daljit Dhaliwal interviews Weston Konishi, an adjunct fellow with the Maureen and Mike Mansfield Foundation.
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