Tarchaneiotes' army disappeared, though, probably defeated. In any case, you don't have to kill every man in an army to cause it to cease to exist. The Tagmata were never reconstituted - that in itself is an indication of the destruction of the Byzantine army as it was. From then on it wasn't really much of a force.
I don't see how the loss of the Anatolian plain should have been what caused it to cease to be a major force, since most of the population was in Western Anatolia and Thrace.
What I am arguing for here is that the main damage done was not military, but political. If the political damage was never done, the military damage could have been repaired. Consider that the Empire had far worse defeats in its history, militarily speaking... what really did it in was the time between Manzikert and the ascention of Alexius I.
Granted, Romanus IV was probably doomed regardless of how the events turned out. However, let's presume that someone slightly more sensible than Michael VII comes on the throne, decides to make the best of the bad situation, and agrees to honor an agreement with Arp Arslan. There is still likely to be a lot of Seljuk migration to Anatolia, but FAR less than OTL, and that gives Byzantium enough breathing time to rebuild its military, which can be done, given that the losses at Manzikert were not, in the long run, irreplaceable, and that the treaty between Romanus and Arp Arslan was quite lenient on the Byzantines in the short run.
In other words, it would give the Empire at least 10-20 years in which to rebuild - the problem was that Michael VII basically threw all of that away by refusing to honor the treaty, and by making a mess out of what was a bad, but repairable situation in the first place.
Don't know how this will affect the debate; but I remember reading that once the Rum Seljuk state was established, Byzantium taught them how to run a govt. and a country
The Rum Seljuk state was run on a Persian model, not Byzantine.
For now, I will submit to you on that. It will depend whether I can find that source or not
The Rum Seljuk state was run on a Persian model, not Byzantine.
I'm not sure I agree that there wasn't permanent military damage done, but on the other front it was Alp Arslan who wouldn't honor the treaty because he made it with Diogenes, who he considered a friend, and Michael (or anyone else) an usurper and traitor.
It doesn't really matter anyway since Arp Alp Arslan was dead a year later and his successor was more hostile to the Byzantines.
The person who really deserves the blame is Constantine IX, who dismantled the eastern defenses and left the empire exposed to the Seljuks in the first place. Or you could extend the blame back to Basil for not producing an heir resulting in a long string of bad leaders.
What I have read, although not for a couple of years now, seemed to suggest that the battle itself was not fatal. I.e. that it was the civil war that killed off the rest of the army and made a quick recovery impossible. Alexius himself was the leading general of a contender he later overthrew himself and had a rather lucky victory over another, talented rival in a bloody battle that if it had been avoided could have altered things drastically. Think the same book pointed out that despite the upland areas of Anatolia being occupied by the Seljuk’s almost immediately after the battle the region around Antioch stayed under imperial control for several more years. Despite being richer, more open to the Turkish nomads and the way they wanted to go, i.e. towards the Fatimid’s. Simply because there were still coherent imperial forces to defend the region.
The social/political changes with the empire increasingly reliant on mercenaries and local lords were important but only became difficult to reverse after the bulk of the old imperial army was destroyed by the civil war.
Steve