The correct answer is "True joy is experienced after difficult battles are won".
This whole excerpt is embedded with the sense of resolution and rejoice that comes after surpassing adversity. The narrator clearly expresses how aliviated he feels to be back with his family; how excited he is for the future; and a strong sense of pride for his country. Without a doubt, the most powerful image conveyed in the passage is that of the joy he sees on his mother's face: "In that instant, joy won the fight on Mama's face".
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