Nato secretary-general Mark Rutte warned that the current target of spending 2 per cent of GDP on defence is no longer sustainable after very public criticism from Donald Trump.

Voters were warned last night to brace for further tax rises after Nato spending demands blew a £40billion hole in Labour's plans.

Nato secretary-general Mark Rutte warned that the current target of spending 2 per cent of GDP on defence is no longer sustainable after very public criticism from Donald Trump.