Over 250,000 were brutally murdered and the rest were forcefully expelled to Austria and Germany. This was ethnic cleansing in the purest form. If the United States had stayed away from WWI, these three monsters states could not have been created. Now, after we have planted the seed and created the monster, we cannot stay away as many propose, but must go in with military force without a solution in sight. Remember, WWI was started in Sarajevo, Bosnia, by a militant Serbian, which became part of the above-mentioned monster.
Nothing is done.
After WWII, when the murderer Tito ruled Yugoslavia, thousands of ethnic Germans were killed and the rest fled or were expelled. At that time, the Allies paid no attention when he and the other Communist leaders in Czechoslovakia, Hungary and Poland murdered and expelled over 18 million. Of course, these were only German people. Since Titio and Stalin, both brutal murderers, did not like each other, the U.S. Government gave Tito huge sums of money with which he bought military hardware. By 1975, Yugoslavia had the third-largest army in the world.