Who is a notable 5 Star General (O-11)?

The correct answer is Douglas MacArthur, who holds the distinction of being a notable five-star general, indicated by the rank of O-11 in the U.S. military. This rank is the highest awarded to officers and is rare in U.S. history. MacArthur was awarded the title during World War II and is recognized for his significant role in the Pacific theater of the war, as well as for his leadership during the occupation of Japan afterwards. His extensive military career and strategic insights contributed considerably to the U.S. military legacy, justifying his recognition as a five-star general.

In contrast, while Colin Powell was a prominent military leader and the first African American to hold the position of Chairman of the Joint Chiefs of Staff and later Secretary of State, he never attained the five-star rank. George Patton, another famous general, was a significant figure during World War II but also did not achieve the five-star rank. Henry Kissinger is not a military general; rather, he served as a diplomat and Secretary of State, making his inclusion in the context of military ranks inappropriate. Thus, MacArthur stands out as the notable five-star general among the options provided.