Yagoda was but the first of many to die by Yezhov's orders. Under Yezhov, the Great Purge reached its height during 1937–1938. 50–75% of the members of the Supreme Soviet and officers of the Soviet military were stripped of their positions and imprisoned, exiled to the Gulags in Siberia or executed. In addition, a much greater number of ordinary Soviet citizens were accused (usually on flimsy or nonexistent evidence) of disloyalty or "wrecking" by local Chekist troikas and similarly punished to fill Stalin and Yezhov's arbitrary quotas for arrests and executions. Yezhov also conducted a thorough purge of the security organs, both NKVD and GRU, removing and executing not only many officials who had been appointed by his predecessors Yagoda and Menzhinsky, but even his own appointees as well. He admitted that innocents were being falsely accused, but dismissed their lives as unimportant so long as the purge was successful: In 1937 and 1938 alone, at least 1.3 million were arrested and 681,692 were shot for 'crimes against the state'. The Gulag population swelled by 685,201 under Yezhov, nearly tripling in size in just two years, with at least 140,000 of these prisoners (and likely many more) dying of malnutrition, exhaustion and the elements in the camps (or during transport to them).