Following his discharge, Lee began to write “ war poems ” and give voice to anti-war thoughts. Many critics believe that this period (1969 – 1971) marks the first important turning point in his work — from personal subjects to something more socially aware.
許多評論家認為，「戰爭詩」（1969～1971）和反戰思想，是李敏勇詩風第一度蛻變的重要轉折點 — — 從個人的「小我」轉化為具社會意識的「大我」。