The Germans manufactured the u-boats.
They had over 1,000 U-Boats They had over 1,000 U-Boats
'U-boats' was the name given to German submarines in both the first and second world war.
If you are meaning to U-boats as in World War two? Than U-boats certainly mean "Underwater Boats"
Germans
Germany
yes they did use u-boats
U-boats were German.
U-boats
really big
U-boats
Sinking merchant ships.