The essence of the difference between the treaties of Oleg and Igor with Byzantium lies in the political and strategic situation itself. When Prince Oleg in 907 set out on a campaign against Byzantium, having under his command a huge army (80 thousand people) and 2,000 ships, he could actually deal a crushing blow to the empire. Byzantium understood what it threatened and offered a big tribute and a very lucrative contract. At that moment, when Igor went to Byzantium in 941-944, his campaign was not successful. In this connection, a new treaty was signed between Russia and Byzantium, but it was less profitable than the previous one.
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