||The BE-12a was an improved version of the single-seat BE-12, which had itself been developed from the two-seater BE-2. Despite the design refinements, the BE-12a, intended as a fighter, was no match for German fighters. It entered service on the Western Front in mid-1916, was quickly relegated to a ground-attack role, and had left the theatre entirely by the end of the year. In Palestine, where the nature of air operations was less intensive than over the Western Front, the BE-12a continued in front-line service until mid-1918. In that theatre, the aircraft was used primarily for reconnaissance and bombing tasks.