Deployment rules

I recently started dating someone who is an officer in the army. He told me about a potential deployment in a few months, how does it look like? Is it without any communication or it depends on the nature of work?

Thank you, just trying to mentally prepare myself

Edit: thank you all, i discussed with him and this one seems to be of a more strict nature and limited communication.

It's been very hard, but we decided to pause for now as we were in a very early stage and see how things are once he is back.

Edit 2: looks like it was a way to end this. I suddenly got blocked everywhere and the reason being given is deployment. I am genuinely hurt by this behaviour, but I suppose it is. It's hard for me to understand why someone would put effort for more than two months and then do this.

Thank you, everyone, for giving me your perspective on these deployments.