I think the answer is peace of treaty
A peace treaty is an agreement between two or more hostile parties, usually countries or governments, which formally ends a state of war between the parties.
So they can have all the land to there selves
One result of advances in medical technology IS BETTER DIAGNOSIS.
The advancement in medical technology has made it possible for health providers to better diagnose and treat their patients much more than before. Advancements in areas like biotechnology, pharmaceuticals and information technology had made possible better diagnosis, improved medical procedures and improved care for patients.
wait whats the question, ill answer in the comments after