The First Opium War revealed the outdated state of the Chinese military. The Qing navy, composed entirely of wooden sailing junks, was severely outclassed by the modern tactics and firepower of the British Royal Navy. British soldiers, using advanced muskets and artillery, easily outmanoeuvred and outgunned Qing forces in ground battles. The Qing surrender in 1842 marked a decisive, humiliating blow to China. The Treaty of Nanjing, the first of the "unequal treaties", demanded war reparations, forced China to open up the Treaty Ports of Canton, Amoy, Fuchow, Ningpo and Shanghai to Western trade and missionaries, and to cede Hong Kong Island to Britain. It revealed weaknesses in the Qing government and provoked rebellions against the regime. In 1842, the Qing dynasty fought a war with the Sikh Empire (the last independent kingdom of India), resulting in a negotiated peace and a return to the "status quo ante bellum".