Like so many of the finest churches, [the cathedral of Siena] was furnished with a plain substantial front wall, intended to serve as the backing and support of an ornamental faÃ§ade. (by extension) The face or front (most visible side) of any other thing, such as an organ.
Why Did the US Enter the Vietnam War: the capitalist south Vietnamese were losing the fight against the communist north Vietnamese and Americans feared the communists would take over.
The war was between the communist party, the North Vietnam government and its allies and the capitalists the South Vietnam government that was supported by capitalist USA. The South Vietnamese side led a guerrilla war, and they depended more on air force help while the North Vietnamese side led a more contemporary way of fighting including large units into battle.