Soldiers from India and China literally fought with sticks and stones – in June 2020 – and reports are that at least 20 were killed. What appears to happen is that both sides undertake construction projects close to the disputed border. Troops occasionally encounter each other – or attack each other on purpose, who knows?
This just seems dangerous when it’s two large, powerful countries with powerful militaries, including nuclear weapons, and nationalist politics. Isn’t the UN Security Council supposed to help mediate in these cases? I haven’t heard a word about that – maybe one more sign the UN has weakened to the point of irrelevance.