The United States and the Russian Federation have long fought for  supremacy in the Arctic Circle, with much of the news cycle favoring  Moscow as the leader of the region so far.
 I have 
written extensively  about Russias efforts to gain an advantage in the region for  geographic and economic purposes. The Russians are militarizing the  region and creating sub-zero super highways with its 40-plus ice  breakers. 
In comparison, the U.S. only has one and there is no telling  when new ones will actually be laid down for construction. As far as  on-the-ground tactical warfare, the Russian military is even training  with reindeer and dogsleds, as 
Foxtrot Alpha reported last year.
                                                                             But the United States is not giving the Arctic up to the Russians  without a fight. Under ICEX 2016 exercises, the U.S. went through five  weeks of training to assess how well it could perform in the freezing  conditions. 
Two submarines, the 
USS Hartford and 
USS Hampton, conducted trips under the ice and broke through patches of it during exercises.
  
Congress has not shown much attention to the Arctic Circle over the  years, but video of paratroopers practicing how to descend on to this  chilly patch of earth shows that the Army isnt waiting on Washington to  care.