Rubuta ci gaba ga wannan sakin layi - Bayan harin Japan a kan Pearl Harbor da kuma shigar da Amurka a cikin yakin duniya na biyu, Wickersham ya ci gaba zuwa matsayi na dan lokaci na Brigadier Janar a watan Janairun 1942 kuma ya dauki nauyin zama kwamandan sabon Makarantar Gwamnatin Soja da ke Jami'ar Virginia a Charlottesville, Virginia. Duk da yake a cikin wannan matsayi, ya kasance kai tsaye ga Babban Janar na Janar na Sojoji, Manjo Janar Allen W. Gullion kuma yana da alhakin horar da jami'ai a nan gaba dalla-dalla dangane da Gwamnatin Soja da Liaison. Masu digiri sun taimaka wa kwamandoji a ƙasashen waje a cikin dangantakar su da fararen hula. Yayin da yake wannan aikin, Wickersham ya kuma yi aiki na musamman a matsayin mai ba da shawara kan harkokin Gwamnatin Soja a Afirka
, Sicily, da kuma Italiya. Don hidimarsa a wannan aikin, Wickersham an yi masa ado da Legion of Merit.