Ukrainian defence minister Stepan Poltorak: “The main thing is to be prepared. If there is action, there will be a reaction.” Photograph: Valentyn Ogirenko/Reuters

Ukraine is braced for a major attack from separatist rebels backed by Russia, officials in Kiev say, as Washington calls for more pressure on Moscow a(...)

Armed people and military trucks are seen near a checkpoint outside a building on the territory controlled by the self-proclaimed Donetsk People’s Republic in Donetsk, eastern Ukraine, November 12, 2014. Photograph: Maxim Zmeyev/Reuters

Ukraine said on Wednesday it was redeploying troops in the east because of fears that separatists will launch a new military offensive, despite Russia(...)

Smoke rises near the traffic control tower of the Sergey Prokofiev International Airport damaged by shelling during fighting between pro-Russian separatists and Ukrainian forces, in Donetsk, eastern Ukraine, today. Maxim Zmeyev/Reuters

Nato has said it saw columns of Russian troops and military equipment entering Ukraine this week, supporting allegations by Kiev that the nation’s eas(...)

A pro-Russian activist directs traffic at a checkpoint outside the eastern Ukrainian city of Druzhkovka yesterday. Russia’s envoy to Nato has accused the  alliance of encouraging the use of force by the Ukrainian government in eastern Ukraine and of hampering efforts to find a peaceful solution to the crisis. Photograph: Gleb Garanich/Reuters.

Nato defence ministers will consider today what longer term steps the alliance needs to take to bolster its eastern defences and improve its ability (...)

Villagers talk with Ukrainian soldiers as they gather at a railway to stop Ukrainian tanks moving towards the airport in Kramatorsk, Ukraine. Photograph: Mauricio Lima/The New York Times)

Nato said today it would send more ships, planes and troops to eastern Europe to reassure allies worried by Russia’s annexation of Crimea but s(...)

US secretary of state John Kerry and Russian foreign minister Sergey Lavrov before their meeting at the Russian ambassador’s residence in Paris yesterday evening. Photograph: Jacquelyn Martin/pool via the New York Times

US secretary of state John Kerry said late last night that he and his Russian counterpart, Sergei Lavrov, discussed suggestions for de-escalati(...)

President Barack Obama meets Nato secretary general Anders Fogh Rasmussen in Brussels on Wednesday. Photograph: Doug Mills/ The New York Times

US president Barack Obama’s four-day visit to Europe continued yesterday with a visit to the EU headquarters in Brussels, where he held talks w(...)

Women going  home after a day of work in the Moldovian autonmous region of Gagauzia. The Gagauz are Turkic Orthodox Christians who speak Russian, and declared independence during the collapse of the Soviet Union.

A decade ago, the work of the European Union’s commissioner for enlargement would take him to some of the continent’s fabled cities, places suc(...)

Pro-Russian activists attend a protest rally in central Donetsk yesterday. Photograph: Reuters

Russia has sought to calm rising fears in Kiev and the West that it intends to push its military deeper into (...)

A worker prepares a security camera outside the Rijksmuseum  in Amsterdam yesterday ahead of US president Barack Obama’s visit. Obama, who will be attending the Nuclear Security Summit in The Hague, will visit the Rijksmuseum today. Photograph: Reuters/Cris Toala Olivares

US president Barack Obama arrived in the Netherlands for four days of meetings with European allies in a visit likely to be dominated by the cri(...)