Dear Francy,
tears are a good thing.
Crying for the pain and the struggles people have to endure is a good thing to do.
It is not your personal doing or fault and you know that.
What you can do is go inside and aknowledge you , being human, did cause harm one time.
Forgive yourself for what you once caused and send all your love to all who are involved in war and struggle..not just the victims but also the perpetrators.
I love you for being so open on this forum about your feelings.