He was responsible for organising the evacuation of 2 million people from Courland and Eastern Prussia at the end of World War II in Operation Hannibal and the Evacuation of East Prussia.
Burchardi udmærkede sig med sit organisatoriske resultat i evakueringen af 2 millioner mennesker fra både Kurland og Østpreussen i slutningen af 2. verdenskrig under Operation Hannibal og Evakueringen af Østpreussen.