On 2 April 1945, Lance-Sergeant Lang was ordered to make a bridge reconnaissance at Doetinchem, Map Reference A 004751. At 1100 hours, Lance-Sergeant Lang tried to get to the bridge site from the south, but was forced to retire owing to observed small arms fire. On his own initiative, he proceeded to the east of Doetinchem on foot, but was unable to make a detailed reconnaissance on the site because of small arms fire. He did find out information relevant to the bridge, condition of the pier and abutments, by observing with his binoculars.
In the afternoon, determined to get the complete information at the earliest possible moment, he wet forward again. Although under observed small arms fire from the buildings on the north bank, and with very little cover, Lance-Sergeant Lang exposed himself many times to obtain the complete information from the bridge reconnaissance.
Lance-Sergeant Lang's coolness and determination under fire were instrumental in obtaining the necessary Engineer data. The results of Lance-Sergeant Lang's complete and accurate reconnaissance enabled his superiors to appreciate the situation and make a plan, so that when the north bank was cleared, building of [a] bridge could start at once. The building of this bridge opened up the main supply route for 2 Canadian Division.