 Much input into these "Propositions of Uxbridge" was from Archibald Johnston.The conditions were very assertive, with Presbyterianism to be established south of the border, and Parliament to take control of all military matters.Charles had decided that the military situation was turning in his favour, after the Second Battle of Lostwithiel, Second Battle of Newbury and consequent relief of Donnington Castle, and the campaign of James Graham, 1st Marquess of Montrose in Scotland.