What does China's disputes with neighboring countries prove?

Prime Minister Narendra Modi on a visit to Ladakh on Friday issued a clear warning to China without naming it, saying that the "age of expansionism is over."
Addressing the armed forces, he said, "The age of expansionism is over, this is the age of development. History has been witness that expansionist forces have either lost or were forced to retreat."

Watch this report to know what China's disputes with neighbouring countries prove?