1937–1941 Pampanga peasant unrests

Since 1937, there were series of peasant-led violence, civil disorder, and terrorism in Pampanga as a result of falling sugar prices and worsening economic conditions in the Philippine Islands during the Great Depression. The demonstrations started as formal protests in the early 1930s directed towards the Department of Labor, later fuelling into violence between sugar landlords and tenants reaching its peak in 1939.

Source: Wikipedia — 1937–1941 Pampanga peasant unrests (CC BY-SA 4.0)