1937年日本法西斯发动“七·七”卢沟桥事变,中日战争全面爆发。苏联政府严厉谴责日本扩大侵略,对中国抗战表示同情与支持。同年8月中苏两国签订《互不侵犯条约》,苏联政府并先后向中国提供三笔从苏联购买飞机、大炮等军火物资的易货贷款,派遣3000多名军事顾问、军事技术专家以及数百名空军志愿飞行员来中国,帮助抗击日 In 1937, the fascist Japan launched the Sept. 7 Lugouqiao Incident and the Sino-Japanese war broke out in full swing. The Soviet government severely condemned Japan for expanding its aggression and expressed its sympathy and support to China’s war of resistance. The same year in August the two countries signed the “Non-Aggression Treaty”, the Soviet government has provided China with three from the Soviet Union to buy aircraft, artillery and other military supplies barter loans, sending more than 3,000 military advisers, military technical experts and the number One hundred Air Force volunteer pilots came to China to help fight the Japanese