March 16 – A referendum on the status of Crimea is held.
March 21 – Russia formally annexes Crimea after President Vladimir Putin signed a bill finalizing the annexation process.
March 24 – During an emergency meeting, the United Kingdom, the United States, Italy, Germany, France, Japan, and Canada temporarily suspend Russia from the G8.
March 27 – The United Nations General Assembly passes Resolution 68/262, recognizing Crimea within Ukraine’s international borders and rejecting the validity of the 2014 Crimean referendum.
April 10 – In response to the 2014 Crimean crisis,the Parliamentary Assembly of the Council of Europe (PACE) passes a resolution to temporarily strip Russia of its voting rights; its rights to be represented in the Bureau of the Assembly, the PACE Presidential Committee, and the PACE Standing Committee; and its right to participate in election-observation missions.
Russia Steals Crimea 4/17 admits it
April 28 – United States President Barack Obama's new economic sanctions against Russia go into effect, targeting companies and individuals close to Russian President Vladimir Putin.