This week has all been about Scottish independence, as politicians and businesses warned of detrimental repercussions from splitting the union, following the official start of the referendum process.

Taking a breaking from scathing attacks, the Tories and former Prime Minister Gordon Brown promised to grant the devolved Scottish government more powers over taxation, if scots voted no in September.

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Meanwhile, the US President Barack Obama made a surprising set of comments over the issue.

Speaking in a joint press conference with UK Prime Minister David Cameron, Obama highlighted how Scotland should stay in the 307-year union as the UK has worked successfully as a "united and effective partner."

Scottish people will vote in an independence referendum on 18 September this year and will be asked the straight "yes/no" question: "Should Scotland be an independent country?"

The referendum period started on 30 May.

Scottish Independence Barack Obama