Sgt Maj Jennings was a soldier in the 2nd Battalion Royal Warwickshire Regiment, which surrendered to German forces along with troops from the Cheshire Regiment, the Royal Artillery and French troops.
They were taken to a barn in La Plaine au Bois near Wormhout and Esquelbecq in France on 28 May 1940, where SS soldiers threw in stick grenades.
Sgt Maj Jennings threw himself on top of one of the grenades to try to save other soldiers.
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Outbreaks of rain first thing in the east will ease through the morning, but remaining largely cloudy throughout the rest of the day.
Another cloudy day with outbreaks rain or drizzle and mist in the morning. Some heavier bursts of rain possible at first.