Charles I concludes 'Engagement' with Scots to abolish Episcopacy and restore Presbyterianism. On the other hand, Scots agree to control militia, abolish army, call new Parliament, and restore the King by force if necessary.
Editors. "Secret treaty between Charles I and the Scots". The Literary Encyclopedia. First published 01 January 2010
[http://www.litencyc.com/php/stopics.php?rec=true&UID=2328, accessed 21 May 2013.]