How does an aircraft carrier support the tactical, strategic, and operational objectives of the United States

I have to write a paper for the military on how an US aircraft carrier can support the President of the US via the 3 stages/objectives of war. The 3 objectives are tactical, operational, and strategic. I am required to give specific examples on how the carrier support these 3 stages or objectives. Please contact me if unclear of the essay question. I dont want Fluffplease. I NEED a strong introduction, body with supporting information on how I feel the carrier meets the needs, and a strong conclusion to finish the paper.