Mongol invasion of Java

The Yuan dynasty under Kublai Khan attempted in 1293 to invade Java, an island in modern Indonesia, with 20,000 to 30,000 soldiers. This was intended as a punitive expedition against Kertanegara of Singhasari, who had refused to pay tribute to the Yuan and maimed one of their emissaries. However, in the intervening years between Kertanegara's refusal and the expedition's arrival on Java, Kertanegara had been killed and Singhasari had been usurped by Kediri. Thus, the Yuan expeditionary force was directed to obtain the submission of its successor state, Kediri, instead. After a fierce campaign, Kediri surrendered, but the Yuan forces were betrayed by their erstwhile ally, Majapahit, under Raden Wijaya. In the end, the invasion ended with Yuan failure and strategic victory for the new state, Majapahit.