Cambodia... I was just in Sihanouk last week and the entire city is under massive development by the Chinese. You have 4-5 star hotels built with potholed dirt roads out front. Giant apartment buildings are going up in marshland. There is also a massive port built there where China can now move goods through. There is zero care for the environment and the entire city is a mess. Tons of gambling, prostitution and drugs... it is literally like the wild wild west there. All in the last couple of years. [1] [2]

Vietnam doesn't work so well with the Chinese because of their history and because the US has already been giving Vietnam a bunch of free boats [3] [4] and money.

[1] https://www.theguardian.com/cities/2018/jul/31/no-cambodia-l...

[2] https://www.washingtonpost.com/world/asia_pacific/this-cambo...

[3] https://thedefensepost.com/2018/03/29/us-gives-vietnam-6-pat...

[4] https://www.reuters.com/article/us-vietnam-usa/u-s-delivers-...