This section of the Constitution relates to; The expressed powers of the legislative branch
The gulf of tonkin gave the President of the United States (Lyndon B. Johnson) the right to use any military force that was deemed conventional without the declaration of war by Congress in Southeast Asia and to assist any army, whether legitimate or not. This started the rapid escalation from the Americans in the Vietnam War and their rapid warfare against North Vietnam.
It was almost exclusively the lower class that lived in tenement houses during the nineteenth and twentieth century--usually in very poor and dirty living conditions.
The first monarch of Spain was Charles I in 1516
Tigris and Euphrates river, in the midst of a vast desert, the peoples of Mesopotamia railed upon these rivers to provide drinking water, agricultural irrigation, and major transportation routes.