Taiwanese soldiers share love, would it happen in the US army or any other western countries?

It is a part of the human condition, and corruption. People in any military, as well as all people are subject to temptation and carrying out human if dishonorable actions. So yes, this sort of behavior takes place in the US Army as well as every military on the planet. The added stress of the job does not help people to make the best choices at all times. So yes, US and other western soldiers might "share love".