Simplify the following text for a Grade 11 native English-speaking person.
Original: In his bid for imperial power , Vespasian joined forces with Mucianus , the governor of Syria , and Primus , a general in Pannonia .
Simplified: p43 In his bid for imperial power , Vespasian joined forces with Mucianus , the governor of Syria , and Primus , a general in Pannonia .