In 340, Later Zhao's emperor Shi Hu wrote to Li Shou, seeking an alliance against Jin. Li Shou agreed and began to build a fleet and store food supplies, ready to attack, despite opposition by Jie. Gong visited Chengdu and analyzed the situation for Li Shou—that if Jin were destroyed, Li Shou would be forced to submit to Later Zhao as well due to Later Zhao's sheer size. Li Shou thereafter cancelled the plan to attack Jin. Indeed, later that year, the chances of an alliance with Later Zhao was further damaged when Li Shou wrote Shi Hu with arrogant terms, causing Shi Hu much offense.