Hans-Ulrich Rudel (2 July 1916 – 18 December 1982) was a German ground-attack pilot during World War II. Rudel was the most decorated German serviceman of World War II, being the sole recipient of the Knight's Cross with Golden Oak Leaves, Swords, and Diamonds in January 1945. Post-war, he was a prominent neo-Nazi activist in Latin America and West Germany.