Final answer:
The victory at the Battle of Tumu illustrated the permanent presence of the Dutch in the Orient. This battle, where a Chinese military expedition was defeated, weakened the ruling Chinese dynasty and opened up opportunities for European states like the Dutch to establish trading rights in China.
Step-by-step explanation:
The victory at the Battle of Tumu illustrated the permanent presence of the Dutch in the Orient. In 1449, a Chinese military expedition into Mongol territory ended in the slaughter of the Chinese at the Battle of Tumu. This defeat weakened the authority of the ruling Chinese dynasty, the Qing, and allowed other European states, including the Dutch, to secure trading rights in China.