Was the description of the balkans as the "powder keg" of europe justified? explain

A powder keg is a barrel of gun powder that just needs one spark to set it off. The Balkans in Europe went through some minor events that led to a major one. The assassination of Archduke Francis Ferdinand and his wife was the spark that set off the powder keg and let to the explosion---WWI.

Ibe alive d d i think d