Explain trench warfare and describe some of the difficulties of this war tactic

The viceroy of spain asked that coronado's expadition be cristian and apostolic and not a buchery, what does that mean and did cornado follow his orders

When was the us construction written

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b. the united states should end slavery. c. the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii