From your own link:
https://en.m.wikipedia.org/wiki/Sino-Soviet_border_conflict
https://en.m.wikipedia.org/wiki/Nathu_La_and_Cho_La_clashes
https://en.m.wikipedia.org/wiki/1960%E2%80%9361_campaign_at_the_China%E2%80%93Burma_border
https://en.m.wikipedia.org/wiki/Korean_War
https://en.m.wikipedia.org/wiki/Battle_of_Chamdo
Some are outside the 50 year mark by a decade or two but it shows in the last 50 years theyve pretty much attacked every single country around them.