How does Sam feel about fighting lobster backs in My Brother Sam is Dead?

In "My Brother Sam Is Dead," Sam Meeker feels a strong sense of duty and conviction about fighting against the British soldiers, referred to as "lobster backs." He is passionate about the American Revolution and believes in the cause for independence. However, his determination also brings tension within his family, particularly with his father, who opposes the war. Overall, Sam's feelings are a mix of idealism, bravery, and the weight of familial conflict.