What tactical error resulted in the US troops’ inability to successfully invade Canada? A. The US troops joined forces with militiamen who had a history of being unreliable.
B. The US troops decided to launch a three-pronged attack instead of combining strengths.
C. The US troops burned down the city of York turning all the Canadians against them.
D. The US troops didn’t take into account having to cross the treacherous Niagara River.
E. The US troops didn’t take into account the British forces allying with American Indians.

B. The US troops decided to launch a three-pronged attack instead of combining strengths.

Explanation:

The US military at the time was rather small, and it could not face off against the British and Canadians. The three pronged attack lead to some troops being encircled or trapped.

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.

d.

the northwest territory became the most densely populated area in the u.s.