Record of events: Co alerted to go into defensive position, warning order issued 18 Dec 44 to take up position on Reg Comdr. orders 18 Dec 44 2030 mine plt called out to lay road blocks, anti personnel devices and trip flares to prevent enemy counter attacks. Completed mission 0200 19 Dec 44. Road blocks and anti personnel devices laid on western edge of Lendersdorf. Very little enemy artillery laid in this area during mission. 1st, 2nd and 3rd gun plt to be attached to the respective Bns during stay in defensive position.