What action of german aggression finally pushed britain and france to declare war on germany in 1939?
a. the crisis that took place in the sudetenland
b. the german invasion of poland
c. the signing of the nazi-soviet pact
d. german seizure of memel, lithuania

Which of the following actions is an example of historiography

How many organized territories did the united states have in 1850

Why is illegal immigration a controversial issuea. people think that the current laws on immigration address the issue well.b. there are far fewer illegal immigrants each year than naturalized citizens.c. americans disagree on weather immigration law should change to address it.d. most naturalized citizens first entered the united states as illegal immigrants.