I am guessing you either don't know Vietnam well enough or you find it hard to stomach the fact that you are working with a communist country. Now lets see how long it will last before another word about we are the biggest democracy and communists are bad posts come up on this forum
Threats? judging by the rate these types of media come out followed by some more of your empty chest thumping, I'd say more than just a threat. It explains why China doesn't pay attention to Indian threats in the manner India does to its neighbours.
USA cannot be described as a threat because we are too economically intertwined neither is Russia our political partner. Does it not intrigue you that North Korea is still North Korea today? Funny you are telling us that Taiwan is a threat, I wonder why it is not us who is seeking to buy F16's and anti air missiles only to get turned down by the U.S.
Let me make it easier for you to understand. Only the weak would yap about so and so being a threat and seek military allies to help counter such threats. Not the case with the strong ones