American commanders say the risks they face of backfilling their troops with Iraqi soldiers is manageable.

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"There is no strategy that I am in charge of in terms of reform which is predicated upon backfilling, " he said.

BBC: Scotland politics

Romarco is backfilling all of its pits, except the last one, which she said goes beyond what is required by law.

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"We're pretty much backfilling any erosion we're seeing in newspapers, " Dale said.

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In the 1970s, a hugely expensive and complicated 15-year programme to reclaim 22 hectares of land by damming and backfilling the sea bed began.

BBC: Stade Louis II