Dame Vera Lynn and her 'impromptu concerts' in Burma

In celebration of Dame Vera Lynn's 100th birthday, BBC Radio 4's PM programme has delved into the BBC archives to find some of her early work.

In 1941, Dame Vera started her own radio programme; Sincerely Yours, broadcast on BBC Forces, to send messages to British troops serving abroad. She and her quartet performed songs most commonly requested by the soldiers.

In this programme from 1942, she talked about going out to Burma to entertain the troops with "impromptu concerts" using "a few aeroplane engine cases to make a stage or on the back of a lorry".