War in Ukraine heading to "violent" new phase, warns NATO's Mircea Geoană

Ukraine's military has lasted far longer than anyone expected when the war in Ukraine began one year ago. Much of that success comes down to Ukraine's ability to mobilize the energy of the nation, as well as material support from NATO and its allies. On the one-year anniversary of Russia's invasion, GZERO World traveled to the Munich Security Conference and spoke with NATO Deputy Secretary General, Mircea Geoană, for his candid assessment of the state of the war.

Geoană sees a "very significant and violent" new phase in the offensive and, despite public unity, acknowledges there are internal divisions within NATO about how best to engage and support Ukraine. Plus, there's still an open question about Ukraine's path toward NATO membership, and whether joining the alliance is in Kyiv's best interest. Ian Bremmer asks Geoană about Ukraine joining NATO, the lessons the alliance has taken away from Russia's fighting capacity, and what that means moving forward as the war enters its second year.

Catch Bremmer's full interview with Geoană in this week's episode of "GZERO World with Ian Bremmer," airing on public television stations in the US. Check local listings.