Former US defence secretary Robert Gates, who served under presidents George Bush and Barack Obama, focused on cuts to the UK Navy as particularly damaging. He said that for the first time since World War One, Britain did not have an operational aircraft carrier.
The Ministry of Defence has defended levels of spending within the military spending, and said that the UK had the best equipped and well trained armed forces outside of the US.
More top news
Guitarist makes history by becoming first rock star to play Sistine Chapel, a place he calls "the most beautiful parish hall in the world".
A mother and daughter have been rescued after four days in the New Zealand bush, after their 'HELP' sign was spotted by a helicopter.