1) You may wait six months for the strike to expire. Strikes expire one at a time, as long as you complete Copyright School and receive no additional copyright strikes during those six months.
2) You may ask the person who claimed your video to retract their claim of copyright infringement. To learn more about retractions of copyright infringement claims, please visit http://www.youtube.com/t/
3) If your video was removed as a result of a mistake or misidentification of the material to be removed, such as fair use, you may wish to submit a counter-notification. For more information on the counter-notification process, please visit http://www.youtube.com/t/
Please note that deleting the video that received the strike will not resolve the strike.