Nicholas M. Gallagher

Refugees arrive in Antwerp on the MS St. Louis after over a month at sea, during which they were denied entry to Cuba, the U.S. and Canada, June 17, 1939. (Three Lions/Hulton Archive/Getty Images)

Russian warcrafts hit the Syrian opposition controlled town Daret Ezza in Aleppo, Syria on October 13, 2015. (Mamun Abu Omer/Anadolu Agency/Getty Images)