The next important event in Yukon's history was the construction of the Alaska Highway during the Second World War, which, after its badly needed reconstruction by the Canadian Government in the late 1940s, opened up the territory to road traffic.
O seguinte feito importante na historia do Yukón foi a construción, durante a Segunda Guerra Mundial, da Autoestrada de Alasca, a cal, tras a súa renovación levada a cabo polo goberno canadense a fins da década de 1940, abriu o territorio ao tráfico por estrada.