Stanza 4 in the poem recalls colonial America's defeat of French-occupied territories, implying that American forces will win again against the British.
The function of stanza 4 in the structure and message of the poem is Option 4: It recalls colonial America's defeat of French-occupied territories, implying that American forces will win again against the British.
This stanza in the poem emphasizes the historical context of American victory over the French in the French and Indian War.
By recalling this victory, the stanza implies that the American forces will once again prevail against the British in their fight for independence.
This adds to the overall message of assured American victory and resilience.