Can I post pictures to Facebook while I am deployed to afghanistan?

You will get a whole briefing, pre deployment, about what you can and can't post on social media.

If in doubt, use the "Army Times" test

Before posting a picture..ask yourself..would I be comfortable seeing this in the Army Times with my name attached to it?

If you are actually in the military and getting deployed, you will be briefed on everything you need to know and what is or isn't allowed.

you'll find out in your briefing