The U.S. is stepping up its intelligence-gathering efforts regarding Greenland, drawing America’s spying apparatus into President Trump’s campaign to take over the island, according to two people familiar with the effort.

A growing number of reports about the island have been included in information circulated in the executive branch and Congress, officials said.

Director of National Intelligence Tulsi Gabbard's office last week sent a "collection emphasis message" to the CIA, NSA and other spy agencies directing them to collect intelligence about Greenland's independence movement and identify potential allies there and in Denmark who support Trump's objective of taking over the island,