Arab–Byzantine wars
The Arab–Byzantine wars were a series of wars between a number of Muslim Arab dynasties and the Byzantine Empire from the 7th to the 11th century. Wikipedia
Start date: 629 AD
End date: 1180
8,000 in Bosra 50,000 at Yarmouk ~7,000 at Hazir 10,000+ at Iron Bridge: 300 at Dathin; 130 in Bosra; 3,000 at Yarmouk; ~100,000 at Constantinople; ~250-500 ships at Constantinople