FreeBSD Blocking Countries

$ sudo mkdir /etc/pf-files
In /etc/pf.conf the following needs to be added:
1. In the prerequisites-section add:
    table <blocked_zones> persist file "/etc/pf-files/blocked_zones"
2. In the block-section add early:
    block in quick proto tcp from <blocked_zones> to any port { 22 80 }

blocn_traffic.sh
#! /bin/sh
# Purpose: Block all traffic from specific countries. Use ISO code. #
PF_DIR=/etc/pf-files
ZONE_FILE=blocked_zones
touch ${ZONE_FILE} 
for i in cn az by kz kg ru tj tm uz vn kr se th
do
  wget -4 --no-proxy --no-cookies --no-cache \
	http://ipdeny.com/ipblocks/data/countries/$i.zone
  cat $i.zone >> ${ZONE_FILE}
  sleep 2
done
#
rm *.zone