They weren't so successful at conquering Europe or China. Of course, one can blame the long supply lines, but in these cases their adversaries were also determined to repulse them.
In contrast, Byzantium and Persia were exhausted from mutual warfare. Tribes related by kinship to Muslim Arabs had served as mercenaries during this period, so there was a lot of tactical knowledge available.
The Byzantines retreated to the highlands of Anatolia upon losing their lower-lying provinces to the Muslims. I am not sure if they launched a determined counter-attack. The Persians did, but they could not fight coherently.
Greek epics written by Homer influenced Roman culture was that they<span> led Roman historians to question their loyalty to the Roman gods.</span>
4. because if other countries deny what happened they do not learn from it and it can happen again 5 look for facts do your own resheach and don't take any information for granted (too late lol)