 The Avars and Slavs continued to raid with little resistance until 591, when Emperor Maurice made a ceasefire treaty with the Sassanids in a fairly favorable terms, and shifted his focus to the Balkans.After the peace treaty with the Persians and subsequent Roman refocusing on the Balkans as mentioned above, Maurice deployed veteran troops to the Balkans, allowing the Byzantines to shift from a reactive strategy to a pre-emptive one.The general Priscus was tasked with stopping the Slavs from crossing the Danube in spring 593.