The following timeline gives an overview of the decisions taken by the European Union regarding restrictive measures since the extraordinary meeting of the Council of the EU on 3 March 2014, which condemned the clear violation of Ukrainian sovereignty and territorial integrity by Russia.
The Council extended the restrictive measures in response to the illegal annexation of Crimea and Sevastopol by Russia until 23 June 2017. The measures apply to EU persons and EU based companies. They are limited to the territory of Crimea and Sevastopol.
The Council extended until 15 September 2016 EU restrictive measures against 146 people and 37 companies, in view of the continuing undermining or threatening of the territorial integrity, sovereignty and independence of Ukraine.
The Council extended by one year asset freezes against 16 people identified as responsible for the misappropriation of Ukrainian state funds or for the abuse of office causing a loss to Ukrainian public funds.
The Council prolonged EU economic sanctions against Russia until 31 July 2016.
In March 2015, EU leaders decided to align the existing sanctions regime to the complete implementation of the Minsk agreements, which was foreseen for the end of December 2015. Since the Minsk agreements will not be fully implemented by 31 December 2015, the duration of the sanctions has been prolonged whilst the Council continues its assessment of progress in implementation.
The Council extended the asset freeze for one person covered by measures applying until 6 October 2015.
The Council extended until 15 March 2016 the application of EU restrictive measures targeting action against Ukraine's territorial integrity, sovereignty and independence. 149 persons and 37 entities are subject to asset freeze and travel bans under these sanctions.
The Council extended EU economic sanctions until 31 January 2016. These sanctions were introduced in response to Russia's destabilising role in Eastern Ukraine. They target certain exchanges with Russia in the financial, energy and defence sectors and dual-use goods.
The Council extended until 23 June 2016 the EU restrictive measures in response to the illegal annexation of Crimea and Sevastopol. These measures include prohibitions on import of products, investment, tourism services and exports of certain goods and technologies.
The Council extended the asset freeze for three persons covered by measures applying until 6 June 2015.
Leaders decided to align the existing sanctions regime to the implementation of the Minsk agreements. Economic sanctions will remain enforced until the end of 2015 when the last point of the peace plan is to be implemented: Ukraine regaining control over its borders in the east.
EU leaders also stressed the need to challenge Russia's ongoing campaign of public disinformation about the conflict in Ukraine. The EU High Representative, Federica Mogherini, was invited to prepare an action plan on strategic communication for the June European Council.
EU leaders agreed on the objectives of the Eastern Partnership summit, which then took place in Riga on 21-22 May 2015. The European Council repeated its commitment to the eastern partners and set as a priority to strengthen the democratic institutions to the east.
The Council extended until 15 September 2015 the application of EU restrictive measures targeting action against Ukraine's sovereignty, territorial integrity and independence.
150 persons and 37 entities are subject to asset freeze and travel bans under these sanctions.
The Council adjusted and extended EU restrictive measures focused on the freezing and recovery of misappropriated Ukrainian state funds.
As requested by the Foreign Affairs Council of 9 February, an asset freeze and an EU travel ban were imposed to 19 persons and 9 entities involved in action against Ukraine's territorial integrity.
At an informal meeting of heads of state or government, EU leaders gave cautious support to the Minsk agreement. They indicated that they will not hesitate to take the necessary steps if the agreement is not implemented and the ceasefire is not respected.
The Council unanimously adopted additional listings concerning separatists in Eastern Ukraine and their supporters in Russia. These consist of an asset freeze and a travel ban on 19 persons and 9 entities involved in action against Ukraine's territorial integrity.
To give space for diplomatic efforts and the Minsk talks, the Council put the entry into force of the measures on hold until Monday 16 February 2015.
The Council strongly condemned the indiscriminate shelling of the residential areas, especially in Mariupol, and the escalation of fighting in the Donetsk and Luhansk regions of Ukraine.
In response to those events, the Council agreed to extend the existing individual restrictive measures, targeting 132 persons and 28 entities for threatening or undermining Ukraine's sovereignty and territorial integrity, until September 2015.
It also called for a proposal on additional designations for decision at the Foreign Affairs Council on 9 February 2015.
EU leaders discussed the situation on the eastern borders of Europe, support to Ukraine and relations with Russia. They welcomed the strengthening of the sanctions on investment, services and trade with Crimea and Sevastopol.
As requested by the Foreign Affairs Council of 17 November, an asset freeze and an EU travel ban were imposed to 13 persons and five entities involved in action against Ukraine's territorial integrity.
This decision brought the total of persons subject to EU sanctions over Ukraine's territorial integrity to 132 and the number of entities under EU asset freeze to 28.
Ukraine was the main focus of the Foreign Affairs Council. EU ministers asked the European External Action Service (EEAS) and the European Commission to present a proposal on further sanctions against separatists.
A new package of restrictive measures targeting exchanges with Russia in specific economic sectors entered into force, reinforcing the measures adopted on 31 July.
Following the dramatic escalation of the situation, with the presence and actions of Russian armed forces on the Ukrainian territory, the European Council asked for the preparation of new economic sanctions against Russia.
Following the conclusions of the European Council meeting of 16 July, the Council adopted a package of targeted 'economic sanctions'. These measures concern exchanges with Russia in specific economic sectors.
The Council adopted reinforced EU sanctions. The Council's Committee of Permanent Representatives (Coreper) also discussed the preparatory work on further targeted measures.
EU ministers discussed the situation in Ukraine following the downing of flight MH17. They asked to finalise preparatory work for economic sanctions in four sectors, paving the way for their adoption.
The Council widened the legal basis for EU restrictive measures making it possible to target entities which materially or financially support actions against Ukraine.
EU leaders regretted that Russia and the separatists had not taken the requested steps set out in the June European Council conclusions. They agreed to target Russia with a new set of 6 restrictive measures including restriction on economic cooperation with Russia.
EU leaders set out four specific steps to be taken by Russia and the separatists for de-escalation. They also signed the Association Agreement with Ukraine.
The Council adopted measures to implement the EU's policy of non-recognition of the illegal annexation of Crimea and decided on a ban on goods originating from Crimea or Sevastopol.
In light of events in Eastern Ukraine and the illegal confiscation of entities in Crimea, the Council agreed on a new set of sanctions and took note of the preparatory work done by the Commission and Member States on possible targeted measures, as requested by the European Council in March.
The Council decided to strengthen sanctions against persons responsible for misappropriating Ukrainian state funds and targeted additional individuals under the assets freeze and travel ban.
Following the annexation of Crimea and Sevastopol to the Russian Federation, 12 names were added to the list of Russian and Crimean officials subject to EU travel bans and asset freezes. In addition, the European Council cancelled a planned EU-Russia summit and noted that member states will not hold any bilateral regular summits with Russia.
EU leaders also requested the European Commission to prepare broader economic and trade sanctions that could be imposed if Russia further destabilised Ukraine.
EU ministers decided to introduce a first set of measures against 21 officials responsible for actions threatening Ukraine's territorial integrity.
EU leaders condemned Russia's actions in Ukraine and decided to start preparing individual restrictive measures (assets freeze and travel bans).
The leaders confirmed the actions proposed by EU foreign ministers on 3 March, that is to suspend bilateral talks with the Russian Federation on visa matters and on the New Agreement.
The EU and the member states who participate in the G8 decided to suspend the preparations for the G8 Summit in Sochi in June and considered possible consequences for bilateral EU-Russia relations.
Furthermore, the Council agreed to swiftly work on the adoption of restrictive measures for the freezing and recovery of assets of persons identified as responsible for the misappropriation of Ukrainian state funds.