Ukrainian authorities on Wednesday accused Russia of sending troops and armament into eastern Ukraine to support independence-seeking insurgents.
Russian President Vladimir Putin on Tuesday called for strengthening the country's armed forces to tackle challenges posed by other countries.
Russian President Vladimir Putin has been trying to ask parties involved in Ukraine crisis to spare no effort in peacefully settling the situation.
German Chancellor Angela Merkel and visiting NATO Secretary General Jens Stoltenberg on Wednesday reconfirmed the path of seeking a political solution to the ongoing Ukraine crisis.
French President Francois Hollande on Monday believed that economic sanctions imposed on Russia over tensions of Ukrainian crisis should be lifted if Moscow would made progress in restoring stability in the region.
News Analysis: Ruble's slide adds pressure to Russian economy amid plunging oil prices, sanctions
A sharp depreciation in the value of Russia's currency ruble added further pressure to the country's economy already weakened by plunging oil prices and Western sanctions, leading U.S. experts said.
German Chancellor Angela Merkel on Thursday reiterated the importance of implementing the Minsk deal in solving the Ukraine conflict, and expressed willingness to address international challenges by working together with Russia.
U.S. President Barack Obama on Thursday signed into law a bill aiming for tougher sanctions on Russia, but ruled out additional steps at the moment.
U.S. President Barack Obama intends to sign into law a bill that will ratchet up sanctions on Russia and provide additional assistance to Ukraine, the White House said on Tuesday.
It is impossible to achieve denuclearization of the Korean Peninsula rapidly, and all relevant parties should exercise patience and assume undivided responsibility to stabilize the Northeast Asian region, says a senior Russian diplomat.
Moscow will definitely respond to new sanctions should the United States decide to impose them, a senior Russian diplomat said Saturday ahead of a bilateral meeting of the countries' foreign ministers.
India and Russia Thursday signed 20 agreements ranging from nuclear power, military cooperation and oil exploration, after a summit between Indian Prime Minister Narendra Modi and visiting Russian President Vladimir Putin here.
Moscow said Thursday that it was perplexed by Ukrainian President Petro Poroshenko's plea to close the border with Russia, and that there were no troops to withdraw from the country.
Indian Prime Minister Narendra Modi on Thursday said Russia will remain India's "most important" defense partner.
Russia has sent a group of military officers to Ukraine's Donetsk region at Kiev's request to facilitate peaceful settlement of the crisis, Chief of the General Staff of Russian Armed Forces said Wednesday.
Russia wants to become a reliable energy supplier to the Asian markets, President Vladimir Putin said in an interview with India's semi-official news agency Press Trust of India (PTI).