"Ethnic cleansing" is a very strong word, a word that should never be used when self defense and preservation are involved in the mix. Islamics have been butchering Christians in the region for over 500 years, and the Christians, (the original inhabitants of the land), fight back in kind for their very survival. It's called self defense to them.
America lost 3,000 dead to Islamic terrorists, far less than what the Christians of Serbia have lost over the centuries. And we wisely decided to invade two Islamic nations in reponse and kick their ass from hell to breakfast, destroy whatever infrastructure they had, kill tens of thousands of them, which is fine with me because it's "us or them" in the long run. Islam is not some benign group of peaceful people who wish to coexist with others. They seek to destroy 'infidels', or forcibly convert them. Whenever they hold the upper hand over their neighbors they dominate, murder and oppress. So what's the big problem with another Christian nation protecting their own country from these murderous barbarians?
Maybe America has the technology to drop "smart bombs" down the throats of the enemy without causing massive civilian deaths, but Serbia doesn't.
The Problem is that the good "christian" people are forcibly cleansing cities and murdering others for the EXACT same reasons.
Why the hell do you think the Balkans dissolved along ethnic lines? Because the ethnic lines matched the religious beliefs of the warring parties. Croats were strongly Roman Catholic, Serbs Orthodox, Bosniaks Muslim..
And you're just as insane as the rest of them with your fear induced rants against your ideological enemies. Didn't anyone ever teach you to not poke a hornets nest with a stick when you were a child? (I don't know if that idiom translates to english).
I lived for many years in harmony with Muslims, Catholics, Orthodox and Atheists.. It wasn't until one side (the Serbs) stood up and professed feelings of Superiority that the entire system broke down. You might feel differently about the slaughter of innocents when you're staring down the barrel of a JNA cannon.