Greenland will vote in a general election on Tuesday seen by some locals as a historic chance to free themselves from Danish rule at a time when U.S. President Donald Trump has offered to invest billions of dollars if they join the United States.

The president says the United States needs to “get” Greenland “one way or the other.” The territory has banned political contributions from overseas.

As Greenlanders head to the polls on Tuesday, US President Donald Trump’s idea to annex the nation has thrown this year’s elections into the international spotlight.