China and Russia haven’t fought a border clash since the 1990s. But they are mire frenemies than friends, both fear each other because they share such a huge bo

China and Russia haven’t fought a border clash since the 1990s. But they are mire frenemies than friends, both fear each other because they share such a huge border and don’t have a very peaceful past, but they can be friends when both are threatened by the USA.