Due to the increased frequency of incursions near Alaska by foreign threats, U.S. Sen. Dan Sullivan, a member of the Senate Armed Services Committee, announced Tuesday that the U.S. military will step up efforts to protect Alaska’s borders and the nation’s security.

The US has deployed more than 130 soldiers, mobile rocket launchers, and radar capabilities to a remote Alaskan island, amid increased Russian military activity in the region. The Coast Guard said it located four Russian Federation Navy vessels,

In response to recent Russian military activity near Alaska, including the presence of jets, surface vessels, and submarines, the U.S. military has deployed 130 soldiers to Shemya Island in the Aleutians.