German political coalitions explained in cake

On Sunday, German voters will go to the polls to elect a new Bundestag, the country's lower house of parliament.

Chancellor Angela Merkel's centre-right Christian Democrats and their allies are defending a majority of 40 in the current 620-seat assembly.

It is highly likely that after this election, the country will still be governed by coalition.

The deals can be complex - and throw up all sorts of unlikely alliances. Stephen Evans explains, with the aid of cakes.​

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