David Criswell, professor of physics at the University of Houston, has written scores of studies detailing the possibility of using special power bases on the moon for harnessing solar energy.

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In the tribal world of Chechen politics, people tend to have local power bases (Mr Kadyrov's was his home village of Tsentoroi, Mr Saidullaev's is the town of Alkan-Yurt) but often lack wider support.

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"If you get a process of gentrification displacement and existing power bases are being eroded, it's not in the political interest to pursue it in the long term, " said Mark Davidson, an assistant professor of geography at Clark University in Worcester, Mass.

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The Sulaco, like all military bases everywhere, has the usual collection of ammo and health power-ups semi-randomly strewn around.

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But the MoD said last year that it had access to "a range of international bases which allow us to project our air power around the world".

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"Until then, the UK continues to have access to a range of international bases which allow us to project our air power around the world, " a spokesman added.

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Without an explicit order from the prime minister, Japanese troops are not allowed to guard the prime minister's residence, nuclear power stations, American military bases or a host of other likely terrorist targets.

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It might not make sense to install solar panels on the roofs of suburban tract homes already connected to the power grid, but imagine remote bases in Afghanistan powered by lightweight, flexible solar panels built right into tent fabric, or unfurled as easily as extending an umbrella.

FORBES: Logistics