text:  In 62 , Tigranes invaded the Parthian province of Adiabene . Again , Rome and Parthia were at war and this continued until 63 . Parthia began building up for a strike against the Roman province of Syria . Corbulo tried to convince Nero to continue the war , but Nero opted for a peace deal instead . There was anxiety in Rome about eastern grain supplies and a budget deficit . 
  