Rally Point Zulu was a point in the space surrounding the colony of Reach that was designated by the United Nations Space Command as a location for all UNSC warships in the Epsilon Eridani and Jericho systems to rendezvous and repulse inbound Covenant warships that were about to attack Reach. The appropriate UNSC vessels were alerted by the UNSC Alpha Priority Transmission 04592Z-83 sent by Admiral Roland Freemont of FLEETCOM.