Portsmouth Naval Prison
...that the defunct Portsmouth Naval Prison , considered the "Alcatraz of the East", housed German U-boat crews after WWII?
...that the defunct <b id="mwBhI"><a href="./Portsmouth_Naval_Prison" id="mwBhM" rel="mw:WikiLink" title="Portsmouth Naval Prison">Portsmouth Naval Prison</a></b> (<i id="mwBhQ">pictured</i>), considered the "<a class="mw-redirect" href="./Alcatraz" id="mwBhU" rel="mw:WikiLink" title="Alcatraz">Alcatraz</a> of the East", housed German <a href="./U-boat" id="mwBhY" rel="mw:WikiLink" title="U-boat">U-boat</a> crews after WWII?