U31 type seagoing submarines

U-31 departed from Wilhelmshafen on the 13th of January 1915 never to be seen again It was believed she struck a mine somewhere in the North Sea

Diesel-electric submarine U-31 - Type 212 submarine

ufa656 Pregnancy symptoms during week 31 Braxton Hicks contractions Have you noticed the muscles in your uterus tightening now and then? Many women

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