Ορισμός και Σημασία του "Dutch courage"

What is the origin of the idiom "Dutch courage" and when to use it?

The idiom "Dutch courage" is a phrase that is used to describe the false or heightened sense of bravery or confidence that be attributed to the consumption of alcohol. The origin of this expression is believed to be linked to the rivalrcan y between England and the Netherlands during the 17th century.