Not only had Asia Minor become detached .
The easternmost provinces had broken away , Bactria under the Greek Diodotus of Bactria , and Parthia under the nomad chieftain Arsaces .
Not only had Asia Minor become detached , but the easternmost provinces had broken away , Bactria under the Greek Diodotus of Bactria , and Parthia under the nomad chieftain Arsaces .