Faced by Spanish forces all along the frontier, French Prime Minister Richelieu decided France must go beyond merely financing the enemies of the Hapsburgs and entered the war against Spain on May 21,1635, thus opening a second front in the Catholic Low Countries.
Faced by Spanish forces all along the frontier, French Prime Minister Richelieu decided the time had come to go beyond merely financing the enemies of the Hapsburgs. War was declared against Spain on May 21,1635, thus opening a second front on the Spanish Low Countries.