In a speech to the Scottish Labor Party, Blair attacked an expected strike from the nationalists over the issue of Iraq. Members of Parliament from the SNP and its Welsh equivalent, the Plaid Cymru, have signed an amendment to the Queen's Speech, the annual message laying out the government policy, that calls for a new direction in Iraq.
"If it weren't Iraq, it would be something else -- anything else, anything that lets them say the problem with Scotland is England, it's Westminster, it's London," Blair said.
Blair said that the nationalists are serious about winning complete independence. If they win a majority in the Scottish Parliament, it would create "a constitutional nightmare."
Britain and Scotland have had the same head of state since James VI of Scotland became James I of England in 1603. The two countries merged completely a century later.
Notable deaths of 2014 [PHOTOS]