In the case of Peter Harmony and Others, Claimants of the Brig Malek Adhel v. The United States, the Supreme Court was asked to determine whether a vessel that had been seized by U.S. forces during an armed conflict with Morocco in 1815 could be considered a prize or booty taken from an enemy nation under international law. The claimants argued that since they were not citizens of any belligerent power at the time, their property should have been exempt from seizure as it did not belong to either side in the war and thus could not be classified as “prize” or “booty” according to international law principles established by Great Britain and other European nations prior to this dispute. In its decision, however, the court held that even though no formal declaration of war existed between Morocco and America at this time (the two countries were merely engaged in hostilities), U.S forces still had authority over all vessels found within their jurisdiction regardless if they belonged to neutral parties or enemies alike; therefore making them subject for capture just like any other prize taken during wartime operations would be treated under maritime laws governing such activities around world waters today

In the case of Peter Harmony and Others, Claimants of the Brig Malek Adhel v. The United States, Chief Justice Taney delivered a dissenting opinion in which he argued that Congress had no authority to pass an act allowing for claims against foreign governments. He reasoned that it was not within their power to make such laws as they were limited by the Constitution from doing so. Furthermore, he stated that if Congress did have this power then it would be unconstitutional because it would give them too much control over foreign relations and could lead to war with other countries without any input from the President or Senate. In conclusion, Taney believed that Congress should not have passed this act as it exceeded its constitutional powers and threatened national security.