The Indian and Chinese armies were locked in a standoff in multiple locations in eastern Ladakh.
China's "very aggressive" actions against India, including the brutal attack on Indian soldiers in eastern Ladakh, and its moves in the South China Sea and Hong Kong give a "good insight" into how the ruling Communist Party of China is thinking these days, US National Security Advisor Robert O'Brien has said.
The Indian and Chinese armies were locked in a standoff in multiple locations in eastern Ladakh since May 5. The tension escalated in the Galwan Valley on June 15 in which 20 Indian Army personnel were killed in line of duty during a violent face-off with Chinese soldiers.
"The Chinese have been very aggressive with India," Mr O'Brien said.
"This is a dispute between India and China, but China has shown itself for what it was. Chinese troops ambushed the Indians. They beat 20 Indians to death. They beat them so badly with clubs with nails in them and wrapped with concertina -- barbed wire," Mr O'Brien told Fox News Radio in an interview.
He was responding to a question on the recent Chinese aggressive behaviour against India in eastern Ladakh.
Responding to a question on US-India bilateral relations, he said, India is a democracy and is a great friend of the United States.
"Prime Minister Narendra Modi and President (Donald) Trump have a super relationship," O'Brien said.
"In fact, it was the last foreign trip that I took with the president before the COVID crisis hit, was to India, and we had a great reception of the Indian people there. We have a lot in common with them, we speak English, we're democracies. We've got a growing, very strong relationship with India," Mr O'Brien said.
"But China's action towards India, just like its actions in the South China Sea, just like what it's doing in Hong Kong, just like the bullying intimidation of Taiwan, really gives you a good insight into how the Communist Party of China is thinking these days," he said.
China claims almost all of the 1.3 million square mile South China Sea as its sovereign territory. China has been building military bases on artificial islands in the region also claimed by Brunei, Malaysia, the Philippines, Taiwan and Vietnam.
"It''s something to be very concerned about," Mr O'Brien said.
Earlier in the day, Senator Bob Menendez, a ranking member of the Senate Foreign Relations Committee, alleged that China is seeking to redraw the map of Asia without regard to its neighbours.
"As India and China work to disengage along the Line of Actual Control (LAC), I remain deeply concerned by China's aggressive behaviour in territorial disputes," he said.
"From the 2017 Doklam standoff to the recent violence along the borders in Sikkim and Ladakh, to China's new claims to Bhutanese territory, Beijing has all too often sought to redraw the map of Asia without regard for its neighbours," he said.
The international community must be clear that such behaviour is unacceptable, he added.
Mr Menendez, the top Democratic Senator from New Jersey, said that the US-India partnership, based on their shared commitment to democracy, is vital to uphold international law, international norms and the institutions that can peacefully and diplomatically resolve disputes and aggression.
"I am committed to working with the Indian government and the Indian-American community in New Jersey and throughout the United States to advance US-India cooperation," Mr Menendez said.