Chinese rendering of the Korean term
丁卯胡亂 (정묘호란).
丁卯 marks the year 1627 in the sexagenary cycle;
胡乱 means "barbarian disturbance" — the Joseon-Korean view of the Later Jin (later Qing) Manchu invasion. A second, larger invasion in 1636 is called
丙子胡乱 (Bǐngzǐ Húluàn).