Defiant gardens are gardens created during times of extreme crisis, built behind the trenches of World War I, on both sides of the Western Front; in Jewish ghettos and Nazi concentration camps during World War II; in POW and civilian internment camps, tended to by prisoners and their captors alike; in internment camps for Japanese Americans in the United States during World War II; in garrisons, depots and battalion headquarters; in refugee camps; even on the hollowed out concavities left behind by the Blitz. They are “short-lived, their marks on the land quickly obliterated.”