 Complete the following phrase:  Kublais government faced ficial difficulties after 1279. Wars and construction projects had drained the Mongol treasury. Efforts to raise and collect tax revenues were plagued by corruption and political scandals. Mishandled military expeditions followed the ficial problems. Kublais second invasion of Japan in 1281 failed because of an inauspicious typhoon. Kublai botched his campaigns against 