I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "The principal battles of the stalemate include the Battle of Bloody Ridge (18 August–15 September 1951), the Battle of the Punchbowl (31 August-21 September 1951), the Battle of Heartbreak Ridge (13 September–15 October 1951), the Battle of Old Baldy (26 June–4 August 1952), the Battle of White Horse (6–15 October 1952), the Battle of Triangle Hill (14 October–25 November 1952), the Battle of Hill Eerie (21 March–21 June 1952), the sieges of Outpost Harry (10–18 June 1953), the Battle of the Hook (28–29 May 1953), the Battle of Pork Chop Hill (23 March–16 July 1953), and the Battle of Kumsong (13–27 July 1953)."?
A:
Which battle started earlier, the Battle of Old Baldy or the Battle of Kumsong?