![Many of the early concentration camps were improvised. [LCID: 61931]](https://encyclopedia.ushmm.org/images/large/3f00a0f4-4711-4e1e-912f-f40d07333e4e.jpg)
Muchos de los primeros campos de concentración eran improvisados. Aquí, se pasa lista de los prisioneros políticos a bordo de un barco que servía como campo de concentración flotante. El campo de Ochstumsand, cerca de Bremen, Alemania, 1933 o 1934.
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