Question: Vitim Airport is a public use airport built in Vitim, Sakha (Yakutia) Republic, Russia during World War II for the Alaska-Siberian (ALSIB) air route used to ferry which policy aircraft, formally titled "An Act to Promote the Defense of the United States?
Sentence (from "Lend-Lease"): Canada operated a similar smaller program under a different name.
Relevant evidence: No