The actions of the Japanese aviators over Shanghai represented the first significant air operations over East Asia and for the IJN it also marked the first combat operations from its aircraft carriers. The attack on Zhabei was also the most destructive aerial attack on an urban area until the Condor Legion's attack on Guernica, five years later. Although perceived as insignificant skirmishes, the resulting aerial campaign led to several conclusions: though the A1N2 fighter proved to be inferior in performance to the Boeing 218, the campaign had demonstrated the above average flying skills of the IJN's pilots and the relative precision of its bombing techniques during clear weather.