List one of the key issues that drove britain and the united states into the war of 1812

a) Impressment of American Sailors on high seas by British navy. 
b) Native Americans' threats, and British support to them. 
c) Disagreements over border with Canada. 
d) British violations of treaties. 
e) Pressure from Congress which was led by 'War Hawks.' 
f) Bad state of economy due to Embargo Acts of Jeffersonian eraHope that helps!

The mountains on the east would be taller