As with race, for some incidents there is no clear distinction between anti-union violence and political suppression. Polish labor unions were centrally involved in workers’ uprisings and/or general strikes that challenged the sitting governments in 1905, 1923, and 1937. In a similar way the strike of Asturian miners in 1934, put down by right-wing Spanish government forces with great loss of life, amounted to an insurrection through work stoppage, not an economic labor action. Unions continued to play a political and military role in the subsequent Spanish Civil War.