A number of cards in the Starcraft Board Game (I believe it's exclusive to those from the Brood War expansion) refer to actions to be done during, or after, the "Action Phase".
The official instructions list only three phases; Planning, Execution, and Regrouping.
From context, I would guess that "Action Phase" is synonymous to "Execution Phase" (many of the cards seem overpowered otherwise), but I was hoping to find an official answer rather than conjecture: Which phase is the "Action Phase?"