Passage: The earliest diplomatic relations between Boni (渤泥) and China are recorded in the Taiping Huanyu Ji (太平環宇記) (978). In 1225, a Chinese official, Zhao Rukuo, reported that Boni had 100 warships to protect its trade, and that there was a lot of wealth in the kingdom. In the 14th century, Brunei seems to be subjected to Java. The Javanese manuscript Nagarakretagama, written by Prapanca in 1365, mentioned Barune as the vassal state of Majapahit, which had to make an annual tribute of 40 katis of camphor. In 1369, the Sulus attacked Po-ni, looting it of treasure and gold. A fleet from Majapahit succeeded in driving away the Sulus, but Po-ni was left weaker after the attack. A Chinese report from 1371 described Po-ni as poor and totally controlled by Majapahit.

Question: how many war ships does Boni have?
100