Russia's "massive" military losses in Ukraine are unsustainable, NATO Secretary General warns, as conflict set to enter fourth year with no clear end in sight.

Ukraine's new defense minister says wide-scale desertions and draft-dodging are major challenges as Russia's invasion continues.

Up to 25,000 Russian soldiers are being killed every month, NATO Secretary General Mark Rutte said this week.

Wide-scale desertions and two million draft-dodgers are among a raft of challenges facing Ukraine's military as Russia presses on with its invasion of its full-scale neighbour after almost four years of fighting,

Conflict-related violence killed at least 2,514 civilians last year, the UN's monitoring mission in Ukraine said.

The United States accused Russia of "dangerous and inexplicable escalation" after new attacks on Ukraine's energy and civilian infrastructure.

Russia says it used its new Oreshnik hypersonic missile and other weapons in a massive strike on Ukraine​. Ukrainian President Zelenskyy says a drone hit the Qatar embassy.

The European Union plans to allocate most of a new loan program to Ukraine's military needs over the next two years.

When people flee their homes, and the power disappears, information becomes survival – especially digital information”

Ukraine's chief of defense estimated Wednesday that 200,000 soldiers have gone absent without official leave during an address to parliament.