Complex sentence: As part of squadron 3 of Jagdgruppe 88 (3./J 88), Oesau shot down 8 aircraft during this campaign thus earning the Spanish Cross in Gold and Diamonds one of only 28 people to earn it.
Split into simpler sentences: As part of squadron 3 of Jagdgruppe 88 (3./J 88), Oesau shot down 8 aircraft during this campaign. Thus earning the Spanish Cross in Gold and Diamonds one of only 28 people to earn it.