China's armed forces recruiting dozens of British ex military pilots in 'threat to UK interests'
All British former service personnel, who have accepted jobs to train Chinese military pilots, "are almost certainly enhancing China's military knowledge and capability," an official has said.
I did something like this in the 80's but on the maintenance side of things. The UK recruitment agencies require you to form yourself into a limited company as that will relieve them of the burden of PAYE taxation (pay as you earn)