Western military aid to Byzantium was conditioned on theological union

Evidence

We will now mention the councils of Basel and Florence where, in response to the looming Ottoman threat, the Orthodox and Latin churches attempted to reconcile. The Emperor, in particular, saw this agreement as necessary to ensure survival. 14,15 In order to resist the onslaught of the Ottomans, he required external help, but the Papal forces and the aid of the Latin West would only come through a theological union. The Pope offered his help to the Byzantine Emperor, but only on condition they submit and agree to credal compromise. 16 In light of this hope, a council was called for, first in Basel and later in Ferrara and finally moved to Florence. During the council, three chief doctrinal issues were discussed, the issue of filioque clause, unleavened bread, and papal authority. — Ali Qureshi, The Fall of Constantinople, 37

Categorization

• XREF: Connects to accounts of church union politics around the fall of Byzantium, and to how religious conditions shape great-power aid agreements. — connects to: Joseph Bryennius, a Byzantine theologian said, ‘Let no one be deceived by delusive hopes that the Italian allied troops will sooner or later come to us. But if they do pretend to rise to defend us, they will take arms in order to destroy our city, race, and name.’ The military aid of the Latin might push off the Ottoman threat, but this assistance would have far worse consequence than those the rule of the Ottomans would have. Indeed, the Latins would require doctrinal subordination and recognition of papal superiority.; The Orthodox church retained virtually all the traditional apparatus of their administration without having to compromise and alter a part of their beliefs or practice. As the millet system was a contractual relationship, the Orthodox only had to pay a tax in order to have their right to independence and practice Christianity the way they wished. No papal authorities would monitor or censor Orthodox doctrines; in this regard the Ottomans were a convenient buffer against Latin interference.; Doctrinal inflexibility within Orthodoxy undermined defense against the Ottomans — Ali Qureshi, The Fall of Constantinople: A Critical…, 24 (+6 more)

Broader Connections

• Orthodox-Latin clerical tensions blocked Western aid to Constantinople. #corroborates (0.75) — Ali Qureshi, The Fall of Constantinople, 48
• The Latin doctrine differed from the Orthodox in regard to papal supremacy, the filioque clause, and unleavened bread. With these tensions unresolved between the churches, the Ottomans may have… #expands (0.70)
• The fall marked the end of the Eastern Roman Empire and highlighted the deep-rooted theological tensions within Christianity, tensions that were so profound that many Orthodox Christians preferred… #expands (0.70)
• Orthodox Christians valued doctrinal purity over military alliance with Rome. #exemplifies (0.65) — Ali Qureshi, The Fall of Constantinople, 49
• Doctrinal inflexibility within Orthodoxy undermined defense against the Ottomans #expands (0.60) — Ali Qureshi, The Fall of Constantinople, 24
• Byzantine Orthodox preferred Muslim conquest over theological compromise with Latin Christians #exemplifies (0.60) — Ali Qureshi, The Fall of Constantinople, 25
• Western arms aid to Somalia was conditioned on abandoning Pan-Somali claims #exemplifies (0.60) — I.M. Lewis, I. M. Lewis, A Modern History of the Somali_ Nation…, 569