Why was parliament victorious in the English civil war?

Parliament was victorious in the English Civil War due to several key factors, including effective military leadership, particularly from figures like Oliver Cromwell, who organized the New Model Army into a highly disciplined and motivated fighting force. Additionally, Parliament secured crucial alliances and support from various groups, including the Scots, and effectively utilized resources and finances to sustain their efforts. The royalists faced internal divisions and lacked the same level of organizational unity, ultimately leading to their defeat.