The Wars of the Three Kingdoms began in 1639 with the first of the two Bishops' Wars against the Scots Covenanters; Rich served as General of Horse in a chaotic campaign that ended without significant action. A second defeat in 1640 forced Charles to recall Parliament in November, which impeached both Archbishop Laud and the Earl of Strafford. A long-time opponent of Strafford, Rich gave evidence against him but abstained from the vote which led to his execution in May 1641.