<span>They were able to turn flat figures into three dimensional figures using perspective it portrayed death and distance and felt more realistic.</span>
The war was fought primarily between the colonies of Great Britain and New France, with both sides supported by forces from Europe as well as American Indian allies.
Flat Characters are, well, flat. They don't change much if at all. Round characters are complex as crud and go through lots of change, usually to surprise the reader.
It was to protect soldiers