CNN  —  They are considered one of the world’s most dangerous, and indiscriminate, weapons. Yet five European countries have turned their backs on an international treaty on the use of landmines , citing the growing threat from Moscow. Finland, Poland, Latvia, Estonia and Lithuania – which all border Russia – have made moves to pull out of the Ottawa Treaty , the agreement that bans the use of anti-personnel landmines, which are designed to kill or maim if stepped on. The developments have