WHy did the government of the US refused to become involved in the Rwandan genocide, but did intervence a few years later in Kosovo?

2 answers

Didn't one involve US-Russia and the other did not?
I personally felt helpless in the Rwandan situation. I didn't understand the people or their motives. In addition, Western involvement in Africa has not been very successful.

However, I could relate to the Kosovo people, and contributed money to help a large family of refugees settle here.