With or without water it can be used as a barrier, as an alternative for a fence.
A trench is a long narrow ditch.
Types and applications include:
... when Queen Wilhelmina of the Netherlands was excluded from the succession to Luxembourg by the Salic Law, the Grand Duchy passed to the dispossessed Duke Adolph. ...
Buy Halloween Costumes
Kids.Net.Au - kids safe portal for children, parents, schools and