Khiva campaign
{'<entity_0>': 'Russian conquest of Central Asia', '<entity_1>': 'Khiva campaign', '<entity_2>': 'Khanate of Khiva', '<entity_3>': 'Khanate of Bukhara'}
[['Khiva campaign', 'location', 'Khanate of Khiva'], ['Khiva campaign', 'part of', 'Russian conquest of Central Asia'], ['Khiva campaign', 'location', 'Khanate of Bukhara']]
In the <entity_1>, Russia conquered the <entity_2>, and it became a Russian protectorate. By 1868, the <entity_0> had captured Tashkent and Samarkand, and gained control over the Khanates of Kokand in the eastern mountains and <entity_3> along the Oxus River.
['battle']