Russia and Ukraine held a second round of peace talks where they agreed to exchange more prisoners and to return the bodies of 12,000 dead soldiers.

Air assaults on Saturday killed at least four people. Kharkiv’s mayor described an overnight strike as “the most powerful attack” since the beginning of the war.

Ukraine’s shock drone strike on Russia’s strategic bomber fleet this week has generals and analysts taking a new look at threats to high-value United States aircraft at bases in the homeland and abroad – and the situation is worrisome.

NBC News has analyzed satellite imagery to dig into the claims being made by Kyiv and Moscow as part of a wider propaganda war being waged in parallel to the actual fighting.

The large-scale attack comes days after Trump says Putin had "very strongly" promised response to Ukraine "Spider web" attack.

But halting progress, ever-more deadly drone attacks and unmoving negotiating positions seem to have taken their toll. On Thursday, Trump used a striking analogy to concede the warfare was nowhere near over, and that he did not, at that moment, feel it was best to intervene.

Videos of an object breaking up in the sky over Kazakhstan sparked rumors of a failed launch of Putin's deadly nuclear-capable ballistic missile.