Three meters underground, a network of tunnels and trenches fortified with timber provides a safer spot for frontline fighters to rest and recuperate – and a deeper position to defend against a potential Russian advance into Zaporizhzhia in southeastern Ukraine.

A July 20 memo ordered U.S. intelligence agencies not to share information about Russia-Ukraine talks with Five Eyes partners U.K., Canada, Australia and New Zealand.

President Donald Trump offered his assurances that U.S. troops would not be sent to Ukraine to defend against Russia, after seeming to leave open the possibility.

The White House is pressuring Ukraine to give up land as part of peace negotiations with Russia. What does that mean for Ukrainians in occupied areas?

Children that Ukraine says were taken by Russia are at the heart of peace talks thanks to a monthslong effort by Western officials and evangelical Christian groups.

For Ukraine, history is a battlefield. Parallels are imprecise, but the current moment resonates with three key chapters in 20th century diplomatic history.

Test your knowledge of this week’s news, and take last week’s quiz here. Jeremy Mikula is the weekend director of platforms for NBC News. Nigel Chiwaya is the Senior Editor, Data Viz for NBC News Digital.

The president, who had said a deal to end the war could be reached soon, expressed frustration over lack of progress and signaled he would pause his efforts.

Donald Trump condemned Ukraine’s recent attack on the Druzhba oil pipeline, which undermines the energy security of two EU and NATO member states, Hungary and Slovakia. For historical and geographical reasons, our countries have no alternative means of importing oil other than… pic.twitter.com/qkfebGA0IU