Following the Russian military intervention in Ukraine and annexation of Crimea, relations between Ukraine and Russia deteriorated, leading Ukraine to consider ending its participation in the CIS. As Ukraine never ratified the Charter, it could cease its informal participation in the CIS. However, to fully terminate its relationship with the CIS, it would need to legally withdraw from the Creation Agreement, as Georgia did previously. On 14 March 2014, a bill was introduced to Ukraine's parliament to denounce their ratification of the CIS Creation Agreement, but it was never approved. Following the 2014 parliamentary election, a new bill to denounce the CIS agreement was introduced. In September 2015, the Ukrainian Ministry of Foreign Affairs confirmed Ukraine will continue taking part in the CIS "on a selective basis".Ukraine to selectively work as part of CIS , BelTA (21 September 2015)Yatsenyuk says Ukraine will drop Commonwealth of Independent States criminal search database system on Aug 24 , Kyiv Post (20 August 2015) Since that month, Ukraine has had no representatives in the CIS Executive Committee building. In April 2018, Ukrainian President Petro Poroshenko indicated that Ukraine would formally leave the CIS. As of 1 June, the CIS secretariat had not received formal notice from Ukraine of its withdrawal from the CIS, a process that will take one year to complete, following notice being given.
