Sky's security and defence analyst, Professor Michael Clarke gives an update on the latest troop movements in Ukraine.

The rules of stay in Ukraine from the portal VisitUkraine.Today

Sky News has verified this video of the moment of an air strike on a brewery in Lysychansk, eastern Ukraine.

Russia-Ukraine War: US announces new round of military assistance for Ukraine

Russia-Ukraine War: United States Assures To Keep Surging Aid To Ukraine

How does the U.S. make the case for its interests in Ukraine?

Ukrainian President Zelenskyy confirmed there are "dead and wounded" as a result of the strikes on the capital.

Russia has targeted Ukraine's capital Kyiv and the nuclear station Zaporizhzhia but what other key resources are vulnerable?

Ukrainian authorities released this video showing the aftermath of missiles fired on the port