In response to Prime Minister Gordon Brown's comments on the future of the Trident nuclear missile system, SNP Westminster Leader and Defence Spokesman Angus Robertson MP said the renewal of Trident is completely untenable.

SNP Leader Alex Salmond led a march against Trident through Edinburgh and told the crowd that only a vote for the SNP was a vote against Trident.

Scotland's nuclear submarine base had 100 safety blunders last year - a 40 per cent rise.

SNP MSP Joe FitzPatrick has written to the UK Defence Secretary Des Browne urging the UK Government to back a full ban on the production and use of cluster munitions at an international conference in Dublin this week.