1975 La Tondeña Distillery strike
The La Tondeña strike was a protest action that happened in October 1975, notable for being the first major strike in the Philippines to be held after President Ferdinand Marcos declared martial law in September 1972. It is also considered one of the first major open acts of resistance against the Marcos dictatorship, and an important turning point for the period.
Source: Wikipedia — 1975 La Tondeña Distillery strike (CC BY-SA 4.0)