What is the meaning behind the Maltese Cross?

The Maltese cross or Amalfi cross is identified as the symbol of an order of Christian warriors known as the Knights Hospitaller or Knights of Malta. It was originally the symbol of Amalfi, a small Italian republic of the 11th century. The cross is eight-pointed and has the form of four "V"-shaped arms joined together at their tips, so that each arm has two points. Its design is based on crosses used since the First Crusade. The eight points are said to symbolize the eight points of courage.

1. Loyalty 
2. Piety 
3. Frankness 
4. Bravery 
5. Glory and honor 
6. Contempt of death 
7. Helpfulness towards the poor and the sick 
8. Respect for the church

The Maltese cross remains the symbol of the Sovereign Military Order of Malta and other Orders of St John and St. John Ambulance. In recent centuries, it has come to be adopted as the insignia of numerous orders of chivalry and appears on the coat-of-arms of the Mecklenburg-Strelitz district. In Australia, the Maltese Cross is part of the state emblem of Queensland.
The cross of Saint Florian, used by firefighters, is often confused with the Maltese cross; although it may have eight or more points, it also has large curved arcs between. The cross of St. Florian is widely used by fire services to form their emblem.