What aggressive actions on the part of European and Japanese leaders led to the outbreak of the Second World War? What role did the United States play in the war prior to entry into the fighting?
Why was Pearl Harbor attacked?

pearl harbor was attacked because the united states cut off their oil supply's

the   square   deal   was   a   program   where   the   government gave any one   a fair   chance   to succeed

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation: