Final answer:
One justification for Americans fighting in the War of 1812 was the forced impressment of American sailors. The blockade of ports along the eastern seaboard and the boycott of New England manufacturing were also motivations for American involvement.
Step-by-step explanation:
One justification for Americans fighting in the War of 1812 against the British was the forced impressment of American sailors. British naval officers kidnapped American sailors and forced them to serve in the British navy, which was a violation of American sovereignty and an attack on American freedom.
Another justification was the blockade of ports along the eastern seaboard. The British navy blockaded American ports, preventing American ships from conducting trade and hurting the American economy.
Additionally, the boycott of New England manufacturing by the British also fueled American involvement in the war. The British boycotted New England manufacturers, causing economic hardship and prompting Americans to seek revenge.
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