U-256
...that U-256 was one of seven German World War II submarines converted into anti-aircraft submarines, and the last German submarine to leave Brest, France?
...that <b id="mwCm8"><a class="mw-redirect" href="./Unterseeboot_256" id="mwCnA" rel="mw:WikiLink" title="Unterseeboot 256">U-256</a></b> was one of seven <a href="./Nazi_Germany" id="mwCnE" rel="mw:WikiLink" title="Nazi Germany">German</a> <a href="./World_War_II" id="mwCnI" rel="mw:WikiLink" title="World War II">World War II</a> <a href="./Submarine" id="mwCnM" rel="mw:WikiLink" title="Submarine">submarines</a> converted into anti-aircraft submarines, and the last German submarine to leave <a href="./Brest,_France" id="mwCnQ" rel="mw:WikiLink" title="Brest, France">Brest, France</a>?