Troops and ships from several European states are gathering in Greenland.
The limited deployment involves Germany, France, Sweden, Norway, Finland, the Netherlands and the UK.
US President Donald Trump says the US needs to "own" Greenland to prevent Russia and China from doing so.
Greenland’s Prime Minister, Jens-Frederik Nielsen, said this week that the territory was in the midst of a geopolitical crisis, and that if his people were asked to make a choice they would choose Denmark over the US.
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