The U.S. House of Representatives passed legislation on Tuesday to provide economic assistance to Ukraine, sending the bill to President Barack Obama for final signature.
The UN General Assembly ( UNGA) on Thursday adopted a resolution, affirming its commitment to Ukraine's territorial integrity and urging all parties to strive for peaceful resolution of the Ukrainian crisis "through direct political dialogue."
Russia dismissed reports on Tuesday that it was allegedly mobilizing troops to its border with Ukraine after the absorption of Crimea, a former Ukrainian republic.
The U.S. Senate on Monday voted to advance the Ukraine aid bill which would grant loan assistance to the crisis-stricken eastern European country and ratify reform measures for the International Monetary Fund (IMF).
U.S. President Barack Obama said on Wednesday that the United States would not take military action in Ukraine against Russia.
Following a briefing by senior UN officials recently returned from Ukraine, a rather undiplomatic debate erupted Wednesday in the UN Security Council between Russia's ambassador and other members of the council as well as the envoy from Kiev.
U.S. President Barack Obama and German Chancellor Angela Merkel condemned on Tuesday Russia's moves to formally annex Crimea.
The Crimean parliament declared independence from Ukraine on Monday, after official results showed 96.77 percent of Crimean voters chose to join Russia in Sunday's referendum.
Russian President Vladimir Putin told his U.S. counterpart Barack Obama in an early Monday call that the Crimea referendum was totally legal, while the White House rejected the results.
U.S. Secretary of State John Kerry on Thursday threatened "a very serious series of steps" against Russia with the European Union in response to Crimea's vote on Sunday to break away from Ukraine.
The International Monetary Fund (IMF) said on Thursday that its fact-finding team will complete its work in Ukraine as early as Friday and evaluation on its commitment and capacity to reforms is key in considering the financial aid program.
Moscow gave permission to Kiev for an inspection flight over the border region between the two countries, Russian Defense Ministry said Wednesday, in an apparent effort to clear concerns that Russia is building up military presence there.
U.S. President Barack Obama on Wednesday rejected the legitimacy of a referendum on the future of Ukraine's Crimea region and expressed strong support for the new government in Kiev.
Yurii Klymenko, permanent representative of Ukraine to the UN, on Tuesday reiterated that the upcoming referendum on Crimea's status scheduled on March 16 "is illegitimate under the constitution of Ukraine."
Russian Foreign Minister Sergei Lavrov said Monday that Moscow was not satisfied with U.S. proposals on settling the Ukrainian political crisis, and has drafted its own document to "put the situation on the basis of international law."
Russia on Thursday accused the United States of applying double standards to Moscow's assertions about the developments in Ukraine.
U.S. President Barack Obama proposed a diplomatic resolution once again on Thursday to the ongoing crisis in Ukraine in his phone talks with Russian President Vladimir Putin.