In July 1301, Edward launched his sixth campaign into Scotland, aiming to conquer Scotland in a two-pronged attack. One army was commanded by his son, Edward, Prince of Wales, the other, the larger, was under his own command. The prince was to take the southwestern lands and the greater glory, so his father hoped. But the prince held cautiously to the Solway coast. Scot forces, commanded by de Soulis and de Umfraville, attacked the prince's army at Lochmaben in early September and maintained contact with his army as it captured Robert the Bruce's Turnberry Castle. They also threatened the king's army at Bothwell, which he captured in September. The two English armies met to winter at Linlithgow without having damaged the Scots' fighting ability. In January 1302, Edward agreed to a nine-month truce.