The Rhodope-Vidin War was a war between Rhodope and Vidin that had been operating as a defensive line battle along the Vidinite borders for much of the last decade, with Rhodope being fairly successful at bottling up Vidin forces inside the former Vidin Province. They had been attempting to gather the heavy artillery to breach this line since early in the decade. However, the acquisition of the artillery - and its successful movement to the defensive lines - means that the war entered an entirely new phase.