Although it failed miserably, what was a consequence of john brown's raid on the federal arsenal at harper's ferry?

A boost of encouragement to the secession movement

Explanation:

John Brown as an abolitionist that aimed to start a slave revolt by attacking and capturing the US arsenal at Harpers Ferry Virginia. The plan failed because the Marines killed several of Brown’s men and captured him. He was put on trial for treason, murder and slave insurrection and sentenced to death.

The raid also had another consequence, it boosted the secession movement because it showed the sectionalism between pro-slavery and anti-slavery regions which eventually led to the Civil War.

well we know that it was fought between america and the united kingdom based on that i assume people consider the second war of independence because brtiain and england (uk)   the uk is made up of england and i assume thats why it was considered that