It’s definitely still vulnerable, especially to a country with a military the size of China’s. And China will likely invade sooner rather than later. How the US responds to Ukraine will tell a lot. Xi is watching very closely. A load of sanctions is the bare minimum, but it’s not enough. More needs to be done. Have to send a message to Putin (and Xi and the rest of the world) that he made the biggest mistake of his life, and that this is the beginning of the end for him. But I have very little faith in those in charge at the moment that anything other than sanctions on gas and energy will take place. Sincerely hope I’m wrong.