Task: Translation
Input (English): Instead , the Byzantines offered peace , informing him of both the Byzantine foot and maritime campaign , but intentionally did not notify him of the planned Magyar attack .
Output (French): À la place , les Byzantins firent une offre de paix , l' informant des campagnes terrestre et navale de l' empire , mais lui cachant intentionnellement l' attaque magyare prévue .