In what ways did World War II represent a significant change in warfare?

What type of monarch was fredrick the great ?

In the united state, a system for interaction between unmarried men and woman that casual dating with the purpose of marriage was called

Which of these is not a purpose of the constitution as explained in the preamble? • to make a better country • to keep states more powerful the the u.s. • to keep peace in the country • to protect freedom