Information about every Trident missile the US supplies to Britain will be given to Russia as part of an arms control deal signed by President Barack Obama next week.
Defence analysts claim the agreement risks undermining Britain’s policy of refusing to confirm the exact size of its nuclear arsenal.
The fact that the Americans used British nuclear secrets as a bargaining chip also sheds new light on the so-called “special relationship”, which is shown often to be a one-sided affair by US diplomatic communications obtained by the WikiLeaks website.
Details of the behind-the-scenes talks are contained in more than 1,400 US embassy cables published to date by the Telegraph, including almost 800 sent from the London Embassy, which are published online today. The documents also show that:
• America spied on Foreign Office ministers by gathering gossip on their private lives and professional relationships.
