From UFS-Wiki

UFS Defense Status

An upgrade in military preparedness is typically made by a member or members of the UFS Joint Chiefs of Staff.

This military preparedness level is referred to as Defense Status, or DEFSTAT. DEFSTAT will be tied in with UFS Security Classification Access Levels and is displayed on the UFS homepage at all times.

These classifications can be found here: UFS Security Classifications

DEFSTAT 5	This is the condition used to designate normal peacetime operation within UF Starfleet. No abnormal activities are taking place at any time and all access is cleared from LEVEL 5.
DEFSTAT 4	This condition is called upon by Command when increased intelligence and security measures are taken, these should not be notable to outsiders and only minimal invasive. Clearance LEVEL 4.
DEFSTAT 3	This refers to an increase to fleet readiness above normal. No shoreleaves are cancelled, but all personnell of Intel, Security, SFC and the marines is armed and on hightened alert. Clearance LEVEL 3.
DEFSTAT 2	At this condition all shoreleaves are withdrawn and the fleet is gathering at pre-defined (classified) coordinates. All transmissions are now secured and no unauthorised ship movement is allowed. Clearance LEVEL 2.
DEFSTAT 1	This refers to maximum fleet readiness, all shoreleaves are cancelled, and all personnell is to report to their designated battlestations on all ships and stations. It is reserved for imminent or ongoing attack on UFS sectors or outposts by a hostile power. Clearance LEVEL 1.