Russia taking "heavy losses" with little gain, says Denmark

Driving the news: The Danish Defense Intelligence Service (DDIS) on Sept. 24 shared its assessment of the "Russian threat," accounting for recent drone-and-missile incursions into NATO airspace and a frigate-and-helicopter dustup in the Baltic Sea.

• The three-page document supplements a report published early last year.

Between the lines: Russian belligerence is being influenced by what Ukrainian President Volodymyr Zelensky calls "long-range sanctions," or successful deep strikes on critical infrastructure.

Zoom out: The Russian economy is on the brink of "a major crisis," the Danish report notes, spurred in part by defense spending and international sanctions.

• The Russian military has suffered more than 1 million casualties since the war began. This summer, casualties were thought to be outpacing recruitment.

What's next: Russian President Vladimir Putin is expected to continue lashing out at Ukraine's neighbors and supporters, but the DDIS saw "no indications" of a looming invasion of a NATO country.

Go deeper: NATO chief heads to Washington as Trump 2.0 flames the alliance