Answer:
The Us Armed Forces greatest operations in World War I
Explanation:
The constitution explicitly assigns the president the power to sign or veto legislation, command the armed forces, ask for the written opinion of their cabinet, convene or adjourn congress, grant reprieves and pardons, and receive ambassadors.
The feudal system was just like an ecosystem - without one level, the entire system would fall apart. The hierarchies were formed up of 4 main parts: Monarchs, Lords/Ladies (Nobles), Knights, and Peasants/Serfs. Each of the levels depended on each other on their everyday lives.