Complex sentence: Powell decides that the imminent bombing changes the mission objective from "capture" to "kill", and solicits the opinion of her legal counsel about doing so; to her frustration, he advises her to seek approval from her superiors.
Split into simpler sentences: Powell decides that the imminent bombing changes the mission objective from "capture" to "kill", and solicits the opinion of her legal counsel about doing so. To her frustration, legal advises her to seek approval from her superiors.