Defense Secretary Lloyd Austin canceled a trip to Brussels this week where he was set to attend meetings related to Ukraine's defense and NATO, after his emergency hospitalization over the weekend. Austin was taken to Walter Reed National Military Medical Center on Sunday afternoon due to "emergent bladder issues." The Defense secretary has been fighting prostate cancer and recuperating from surgery over the past few months. President Joe Biden is "not at all" concerned with Austin's ability to continue serving as Defense secretary, National Security Council spokesman John Kirby said Monday. Austin later transferred his duties to Deputy Defense Secretary Kathleen Hicks on Sunday evening.

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Persons: Lloyd Austin, Aden Duale, Donald Trump, Austin, Walter, Walter Reed doctors, Joe Biden, John Kirby, Kirby, Biden, Doctors, Kathleen Hicks Organizations: Defense, Kenyan Defense, Pentagon, NATO, Walter Reed National Military Medical Center, National Security Locations: Arlington , Virginia, Brussels, Ukraine, Austin