To dream of being ambushed represents feelings about unanticipated setbacks or problems. Rejection, delays, or new developments that may have been unexpected. You have been prevented from reaching a goal or destination.
To dream of fearing an ambush may reflect your fear of a surprise attack on you physically or emotionally. Fearing being cut off guard.
To dream of conducting an ambush represents your attempts to stop something using an element of surprise. You may have secret information or plans that you are withholding. It may also point to desperation to ward of potential humiliation.
Example: A woman dreamed of fearing an ambush while she stood in a parking lot. In waking life she feared physical abuse from her husband while she having trouble deciding whether or not to seriously leave him.