How do you get rid of thinking about such events? Or any events that will not affect your life/economy/country mainly?
Don't watch or read international news. Spend more time on your job, get engaged with your friends, etc. At some point, you'll no longer think about that news.
But if you can't stop thinking about it, then spend some time helping those in needs. Regardless of what your job is, you can always donate to a charity organization that focuses on helping people in conflict areas, and so on. At least, that's how I do it.