5. Alfred Redl Spies for Austria-Hungary’s Enemy
Alfred Redl, born on March 14, 1864, in Lemberg, Austria, rose to become the chief of intelligence for the Austro-Hungarian army from 1907 to 1912. During this period, he clandestinely sold critical military secrets to Russia, including mobilization plans and detailed fortification designs. His espionage activities significantly undermined Austria-Hungary’s defense capabilities. Redl’s betrayal was uncovered in 1913 when intercepted envelopes containing cash led authorities to him. Faced with exposure, he committed suicide on May 25, 1913 (britannica.com).
