US secretary of state John Kerry shakes hands with Russian president Vladimir Putin in the presidential residence of Bocharov Ruchey in Sochi.  Photograph: Joshua Roberts/Reuters

Top US and Russian officials said they hoped to work together on contentious issues such as the conflicts in Ukraine and Syria but offered no sign of(...)

Pro-Russian rebels drive on an armored military vehicle near city of Donetsk, Ukraine. Photograph: Alexander Ermochenko/EPA

The United States on Wednesday accused Russia of building up air defence systems inside eastern Ukraine and of involvement in training exercises of pr(...)

Russian president Vladimir Putin. He cancelled a decree under which he had banned delivery of the S-300 system to Iran in 2009, a restriction imposed under diplomatic pressure from the US and Israel

Russia yesterday unblocked sales to Iran of one of the world’s most advanced air-defence systems. It is a move that will irk the US and other world p(...)

 Greek Prime Minister Alexis Tsipras.  Russia has expressed interest in the Greek transport sector and the ports of Piraeus and Thessaloniki. Photograph: Alexandros Vlachos/EPA

ALEC LUHN Determined to take Greek-Russian relations out of “the deep freeze”, a defiant Alexis Tsipras flew to Moscow yesterday for talks with pres(...)

Pensioners rally in Athens. One minister said that if faced with paying loans or paying salaries and pensions, Greece would choose the latter. Photograph: EPA/Orestis Panagiotou

As a European deal to give more aid to Athens falters and the prospect of a default looms, Greek prime minister Alexis Tsipras is preparing to meet R(...)

Searching  for a deal ....  US secretary of state John Kerry looks at the view of Lake Geneva from his hotel room as the Iran nuclear talks continue, in Lausanne, Switzerland, on Wednesday. Photograph: Laurent Gillieron/EPA

Major powers and Iran were closer to a preliminary accord on reining in Tehran’s nuclear programme as marathon talks ran into Wednesday, but they hit (...)

US Under Secretary for Political Affairs Wendy Sherman (L), US Secretary of Energy Ernest Moniz (2nd L), US Secretary of State John Kerry (C) and British Foreign Secretary Philip Hammond (2nd R) wait to start a meeting with  Iranian officials in Lausanne. Photograph: Brendan Smialowski/Reuters

The foreign ministers of Iran and six world powers met on Monday in a final push for a preliminary nuclear accord less than two days before their dea(...)

 A destroyed building  after heavy fighting in the town of Uglegorsk. The United Nations found that more than 6,000 people have been killed since the war in Ukraine started last April. Photograph:  Andrew Burton/Getty Images

Russian president Vladimir Putin will never bow to western pressure to change tack on Ukraine, the Kremlin has said, as the United Nations lamented th(...)

A member of the Ukrainian armed forces stands guard as a convoy of Ukrainian armed forces as they pull back from the Debaltseve region, in Paraskoviyvka, eastern Ukraine, yesterday. Photograph: Gleb Garanich/Reuters

Ukraine has started withdrawing artillery from the frontline of its battle with Russian-backed militants, after a lull in fighting that Washington’s(...)

An armed fighter of the self-proclaimed People’s Republic of Donetsk walks past a damaged airplane in the destroyed airport of the eastern Ukrainian city of Donetsk. Photograph: Vasily Maximovvasily/AFP/Getty images

Ukrainian troops towed artillery away from the front line in the east on Thursday, a move that amounted to recognising that a ceasefire meant to take (...)