Sinking without warning.
Germany's submarine warfare was unrestricted. These attacks led to World War I.
uboat
The Uboat was a submarine made by the Germans
It was the German way of saying "submarine" which properly should be called a "submersible." It is a shortening of "unterseeboot" to just uboat.
885.853199999 metres
Short for Unterseeboot - literally Undersea boat
In World WarII, the germans named it a uboat
UBoat
24 hours
One significant effect of unrestricted German submarine attacks on shipping during World War I was the escalation of tensions between Germany and neutral countries, particularly the United States. These attacks led to the sinking of civilian and merchant ships, including the Lusitania in 1915, resulting in loss of American lives and increasing public outrage. Consequently, the U.S. was drawn closer to entering the war on the side of the Allies, significantly impacting the conflict's outcome.
Unrestricted submarine warfare is a naval war tactic in which the submarine attacks merchant ship (or any ship not in the navy) without warning. Germany used this tactic on American vessels at the start of WW1, and that is a major reason that the US joined the war effort against the Germans.
A tumor shows unrestricted growth.