More information on the new Rare Battle Beacon announcement can be found here:
https://community.ingress.com/en/discussion/17601/now-available-rare-battle-beacon
Information on how to use Battle Beacons can be found here:
https://niantic.helpshift.com/a/ingress/?s=ingress-store&f=battle-beacon-faqs&p=web
And if you are near one of these U.S. cities on Saturday Dec 18th between 11a-3pm local time, Niantic brand representatives will be onsite to hand out a limited amount of swag and display the Rare Battle Beacons in action.
https://nianticlabs.com/blog/community-day-december/?hl=en
#MeetYouOutThere