A soldier desperately needed a bone marrow transplant. Thousands volunteered as donors.

When the call went out over social media that Army Sgt. Derrick Bishop, of the 82nd Airborne Division, needed a bone marrow transplant, thousands responded in person and online.

On Monday, more than 1,000 soldiers and veterans showed up at Fort Bragg, North Carolina for a bone marrow donor screening, and more than 1,000 others submitted requests online for test kits, said Chad Ballance, the senior recruiter for the Defense Department’s marrow donor program, Salute to Life.