Final answer:
In the United States, the power to declare war is a power reserved to the states, while the power to declare war is a power delegated to the federal government. There are also concurrent powers that can be exercised by both state and federal governments.
Step-by-step explanation:
In the United States, the power to declare war is a power reserved to the states. This means that it is a power that is given exclusively to the state governments. The federal government, on the other hand, has delegated powers, which are powers that are explicitly listed in the Constitution, such as the power to declare war.
Additionally, there are concurrent powers, which are powers that can be exercised by both the state and federal governments. Examples of concurrent powers include the power to collect taxes and the power to define crimes and punishments.