Complex sentence: The only major loss during the evacuation from western France occurred off St Nazaire on 17 June, when the liner RMS "Lancastria" was bombed and sunk, by Junkers Ju 88s of "Kampfgeschwader 30" killing some 5,800 personnel E.R Hooton 2007, p.88.
Split into simpler sentences: The only major loss during the evacuation from western France occurred off St Nazaire on 17 June. The liner RMS "Lancastria" was bombed and sunk, by Junkers Ju 88s of "Kampfgeschwader 30" killing some 5,800 personnel E.R Hooton 2007, p.88.