Nic Talbott has dreamt of a career in the military for years.He enrolled in a training programme while at university and spent his weekends in camouflage crawling through mud, or strategising in mock battle scenarios.But a tweet by Donald Trump in July 2017 destroyed all of his plans.The president's tweet declared: "The United States Government will not accept or allow transgender individuals to serve in any capacity in the US Military."Mr Talbott said: "It was like my entire future had just been taken away in one moment over social media for no good reason."The 27-year-old has been living as a man since he was a teenager.