Answer:
One of the main arguments used to support US military involvement in Vietnam was the fear that if Vietnam fell to communism, other nations in Southeast Asia could as well.
<span>The obligations of serfs were to work for lords and knights. Serfs lives were much more difficult than that of a lord or knight. Serfs didn't have freedoms like the lords and knights. Knights would sometimes serve the lord as well but could also be the lord of a castle. Serfs didn't have that option.</span>
Strong state governments and a weak central government
Sonata form, also known as sonata-allegro form, is an organizational structure based on contrasting musical ideas. It consists of three main sections - exposition, development, and recapitulation - and sometimes includes an optional coda at the end.