Junos OS

I want to block visitors by certain country. I can export and save the list https://www.ip2location.com/free/visitor-blocker by selecting the country and file format. What should I do next to enable the blocking in firewall?

Below is the sample list:

# -------------------------------------------------------
# Free IP2Location Firewall List by Country
# Source: https://www.ip2location.com/free/visitor-blocker
# Last Generated: 18 Nov 2018 07:50:16 GMT
# [Important] Please update this list every month
# -------------------------------------------------------
set 202.144.196.0/24

Create a security policy with the address set containing the ip address list.

--address entry per prefix

set security zones security-zone untrust address-book address country1 192.168.1.0/24

--add all to the address set

set security zones security-zone untrust address-book address-set CountryBlock address country1

---create block policy and put first on the untrust to trust  (or whatever internal zone) policy list

set security policies from-zone untrust to-zone trust policy CountryBlock match source-address CountryBlock
set security policies from-zone untrust to-zone trust policy CountryBlock then reject