How did king Charles 1 restart the war?

King Charles I restarted the English Civil War in 1642 by raising his standard at Nottingham, effectively declaring war on Parliament. Tensions had escalated due to conflicts over royal authority, taxation, and religious policies. His attempt to arrest five members of Parliament in January 1642 further inflamed hostilities, leading to the mobilization of forces on both sides. This marked the beginning of a prolonged and violent conflict between royalists and parliamentarians.