The differences between India and China stem from several key issues:
1. Border Disputes: The ongoing border disputes, particularly over the regions of Aksai Chin and Arunachal Pradesh, have been a major point of contention between the two countries.
2. Political Ideologies: India and China have differing political systems—India being a democratic republic and China following a one-party system under Communist rule.
3. Cold War Alliances: During the Cold War, India aligned itself with the Soviet Union, which was in direct opposition to China's alignment with the United States.
4. Economic and Strategic Interests: Both countries have competing interests in regional economic influence and military dominance, especially concerning the Indian Ocean and the South China Sea.