There were also conflicts between the king and the Scots, whose church was ruled by a system known as presbyterianism, which features elected assemblies. James, Charles's predecessor as King of Scotland, made it clear that he intended to impose elements of episcopal church government and the Book of Common Prayer on the Scots beginning in 1604. The Scots considered this a reversion to Roman Catholicism. Charles furthered English impositions on the Church of Scotland in 1636 and 1637. This led to the First Bishops' War between Charles and the Scots in 1639. Charles called what came to be known as the Short Parliament to raise funds for the war, but he soon dissolved it when it began voicing opposition to his policies. Following the Second Bishops' War with the Scots in 1640, Charles was forced to call another parliament to raise additional funds.