"This is the era of development.history has proved that expansionist forces have either lost or were forced to turn back".
India and China fought a border war in 1962 that also spilled into Ladakh.
Paying tributes to the 20 Army men killed in the violent stand-off, Modi had also said India's fearless soldiers have shown that they will not allow the nation's pride to be hurt.
He also paid his tributes to the martyrs of the Galwan Valley clash.
"Communist China believes that in order for them to be strong, America, India and other freedom loving countries must be weaker".
"We are the same people who pray to the flute playing Lord Krishna but we are also the same people who idolise and follow the same Lord Krishna who carries the "Sudarshan Chakra".
China has not disclosed how many casualties its troops suffered.
Indian Prime Minister Narendra Modi made an unannounced visit Friday to a military base in remote Ladakh region bordering China where the soldiers of the two countries have been facing off for almost two months.
Immediately after his arrival, he took a briefing from 14 Corps Commander Lt Gen Harinder Singh about the situation on the LAC and the progress of talks that the army commander had had with his Chinese counterpart Major General Lin Liu in Chushul-Moldo on three occasions last month. The Prime Minister was briefed by Personnel of the Army, Air Force and ITBP at a forward position in Nimu amid ongoing tension with China. Located at 11,000 feet above sea level, Nimu is among the tough terrains, surrounded by the Zanskar range and on the banks of the Indus.
Officials said Mr Modi was accompanied by the chief of defence staff, General Bipin Rawat, and the chief of the Army, General Manoj Mukund Naravane.
Modi's visit comes in the backdrop of massive Indian army build-up in Ladakh region following hand-to-hand combat between Indian and Chinese soldiers on June 15 that left 20 Indian soldiers dead and dozens injured, the worst military confrontation in over four decades between the Asian giants.
He added,"The braves who left us, they didn't depart without reason, all of you gave a befitting reply". "India's integrity and sovereignty is supreme for us, and no one can stop us from defending it. Only the courageous talk peace", PM Modi said. "Indian troops went down fighting ("maarte, maarte mare hain")", he had said.