Disband Units/Recall specified fleet: What is what?
The disband option can be found in the fleet screen. All the specified units will be destroyed for good. There is no way to get them back. This option might be useful if you can’t pay the upkeep of your units and rather want to choose for yourself which units should be destroyed than letting the program choose the units to be decayed/destroyed automatically. Recall means calling your fleet back to your main fleet. You can not recall a specific unit type back; you will always have to recall the whole fleet back.