The Unit Window
To view details on a unit or a stack of units, double click it. This will pull up the Unit Window with details on all the units in the sector. You can also pull up the unit box at any time by clicking on it on the toolbar at the bottom of the screen. Note that when the Unit Window up, clicking on a unit will display that units information in the Unit Window.
Note: WinACE defines units as planes, ships, and lands. WinAce will let you do a few things with Nukes, (build, transport, arm, disarm), but they are not represented on the map, and do not show up in the Unit Window.
Tip: If you click on one of the column headers in the Unit Window, WinACE will sort the units by the values in that columns. (Example: When your air defense has been shot up some, pull up all your fighters in an airport, then click on "mob" or "eff" to sort out the remaining effectives.)
Tip: The Unit Window also contains filters to let you see all units, or all units in a certain fleet/wing/army, etc.