Byzantine-Sassanian war of the 602-628

• August 602: Persia declares war to Rome and conquers the city of Edessa
• October 602: Edessa is recaptured
• September 604: Rome marches to the the city of Dara
• October 604: The advance keeps on
• November 604: Dara is besieged by the Romans
• September 605: The siege of Dara is lifted by the Persians and they push the Romans away.
• October 608: The provinces of Siria and Palaestina rebel under Heraclius
• April 609: Persians capture Mardin
• May 609: Persians capture Diyarbakir and besiege Edessa
• December 609: Persians march into Erzurum
• January 610: The Persians capture Erzurum
• March 610: The Heraclius revolt begins to invade Egypt, capturing it by October
• May 610: Edessa falls to the Persians