He is not necessarily facing risks. Six month deployments may or may not be risky. It's routine in peacetime and in wartime. He can't tell you where he is going because there is no need to know. Classified information is shared on the need-to-know-basis only.
Just because I may have been on the same base with him, or even in the same command, doesn't mean he would tell me where he was going unless my job required me to know that.
I understand.
He is a navy seal. With the training he has received he isn't on the sidelines. He is one of the finest young men I've ever had the pleasure to know. He graduated from college, had a good job the war started and he signed up as an enlisted man.