Saw a mini docu type series on the war of the Ottomans to take Constantinople. This stood out:
The Christian rulers had slaves. LOL. So, get this, the last wave Sultan Mehmet sent against the Byzantine Christians & their Genoese mercenaries was an elite unit of his Turkish army, largely made up of ex slaves of the Christians he had rehabilitated, raised, nurtured, trained & then armed.
That resonated with me. Christians had no business with slavery like that. Such poetic justice.
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Constantinople had other massive flaws. How it secured itself, its relationships with other major kingdoms, its purpose, etc.
Its seemingly impregnable defences were laid down from a bygone era. One where Rome was at the height of its power.
As you well know, Constantinople is Istanbul today.
Netflix
The series is available on Netflix at the following link:
https://www.netflix.com/title/80990771?s=a&trkid=13747225&t=cp
IMDB
You can get some more information on the series at the following IMDB link: