Complex sentence: Badre has directed eleven excavations in Lebanon, Syria, Yemen and Dubai, with prominent studies of Tell Kazel in Syria from 1985 until present, researching ancient Sumer and it's origins.
Split into simpler sentences: Badre has directed eleven excavations in Lebanon, Syria, Yemen and Dubai. Prominent studies include those of Tell Kazel in Syria from 1985 until present, researching ancient Sumer and it's origins.