I want to block all visitors from country X

Hello,

I have experianced a number of attacks all from a specific country.

I would like to completely block access to all users from that country.

I realize that this is not fool proof because people from that country could still use a proxy.

I also realize that people in that country that are not hackers would not be able to access my web site but for the time being I still want to put this in place.

I use Linux / Cpanel / Apache.  I have iptables installed.

Is there any way I can block all access to people from the problem country?

Thanks!