The legal right to expatriation means that you have the right to renounce your citizenship from a particular country. Although rare, some people do this to obtain new citizenship in a different country.
The graphic above represents people and events from which era -revolutionary
1.) They had the French on their side.
2.) Guerilla Warfare.
Guerilla Warfare is a sort of petty type of combat - they ambush, use sneak attacks, etc.
It is significant because we got more resources
