The regime struck back. On December 13, 1981, General Wojciech Jaruzelski imposed martial law, arresting thousands of Solidarity activists, shutting down media, and sending tanks into the streets. The movement was outlawed, and its leaders were imprisoned or driven underground. But even under this intense repression, Solidarity did not die—it transformed. Secret networks kept publishing newsletters, organizing protests, and helping families of detainees. Support poured in from the Polish diaspora and Western allies, while the Catholic Church, led by Pope John Paul II, offered spiritual and moral shelter. Martial law may have crushed open resistance, but it failed to erase the idea that had taken root. People still whispered, still hoped, still believed. The underground became the proving ground for a deeper, more resilient movement—one that understood that lasting change would require patience, endurance, and above all, unity.