Germany changed the tactic during WWI via unrestricted submarine warfare, which meant that German U-boats could attack without warning any vessel it came across. Germany sank the civilian vessel ...

As a Royal Navy volunteer in World War One, he had become all too aware of the threat from Germany’s U-boats. Wilkinson decided he could use his artistic skills to protect Allied ships.

The weapon would be the submarine, U-boats. On a desolate mud bank in the ... Jeremy Paxman explains Lord Kitchener's iconic recruitment PR campaign of WW1. Crushing defeat in the first battle ...