Complex sentence: Chariotry was introduced to the Egyptians by the Hyksos, tribes like that of the Hyksos had access to new and superior weapons which were most probably developed further away in Asia.
Split into simpler sentences: Chariotry was introduced to the Egyptians by the Hyksos. Tribes like that of the Hyksos had access to new and superior weapons which were most probably developed further away in Asia.