What has happened to Ugandan opposition leader Kiza Besigye and what is his political significance?

Kiza Besigye, a 68-year-old Ugandan opposition figure, was briefly hospitalized after his health deteriorated following a hunger strike, but has since been returned to prison. He is a prominent political opponent who has challenged President Yoweri Museveni in four presidential elections unsuccessfully. Besigye represents the leading opposition to Museveni, who has held power for nearly 40 years in Uganda. Despite his significant role as a challenger to the long-standing president, Besigye continues to face imprisonment, highlighting the ongoing political tensions in Uganda's governance system.