The building of the European Court of Human Rights is seen ahead of the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

The courtroom of the European Court of Human Rights is seen ahead of the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

The courtroom of the European Court of Human Rights is seen ahead of the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

Judges of the European Court of Human Rights arrive in the courtroom at the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at the European Court of Human Rights in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

Judges of the European Court of Human Rights arrive in the courtroom at the start of a hearing concerning Ukraine's lawsuit against Russia regarding human rights violations in Crimea, at the European Court of Human Rights in Strasbourg, France, September 11, 2019. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen in Strasbourg, France March 26, 2019. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny reacts with his lawyers after the judgment regarding his case against Russia at the European court of Human Rights in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny poses with his brother Oleg after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny talks to journalists after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny poses with his brother Oleg after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny poses with his brother Oleg after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny poses with his brother Oleg after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

European Court of Human Rights president Guido Raimondi and Soren Prebensen, Deputy Grand Chamber Registrar, pronounce their judgment in the case of Russian opposition leader Alexei Navalny (not pictured) against Russiaduring a hearing at the European court of Human Rights in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

European Court of Human Rights president Guido Raimondi and Soren Prebensen, Deputy Grand Chamber Registrar, pronounce their judgment in the case of Russian opposition leader Alexei Navalnya against Russia during a hearing at the European court of Human Rights in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny talks to journalists after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny talks to journalists after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny attends a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny talks to journalists after a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny attends a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny waits for the start of a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny arrives to attend a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny arrives to attend a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny arrives to attend a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny arrives to attend a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny arrives to attend a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny arrives to attend a hearing for the delivery of the European court of Human Rights Grand Chamber judgment regarding his case against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the judgment regarding in the case of Russian opposition leader Alexei Navalny against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the judgment regarding in the case of Russian opposition leader Alexei Navalny against Russia at the court in Strasbourg, France, November 15, 2018. REUTERS/Vincent Kessler

The crew members of the migrant rescue ships shift a coffin draped in a European Union flag during a mock funeral to symbolically bury European human rights, as the court case against Claus-Peter Reisch, captain of the humanitarian charity ship MV Lifeline, continues at the Courts of Justice in Valletta, Malta August 23, 2018. REUTERS/Darrin Zammit Lupi

The crew members of the migrant rescue ships carry a coffin draped in a European Union flag during a mock funeral to symbolically bury European human rights, after a court case hearing against Claus-Peter Reisch, captain of the humanitarian charity ship MV Lifeline, at the Courts of Justice in Valletta, Malta August 23, 2018. REUTERS/Darrin Zammit Lupi

A crew member of the migrant rescue ship places flowers next to a coffin draped in a European Union flag during a mock funeral to symbolically bury European human rights, as the court case against Claus-Peter Reisch, captain of the humanitarian charity ship MV Lifeline, continues at the Courts of Justice in Valletta, Malta August 23, 2018. REUTERS/Darrin Zammit Lupi

A flower is seen on a coffin draped in a European Union flag during a mock funeral held by the crew members of the migrant rescue ships to symbolically bury European human rights, as the court case against Claus-Peter Reisch, captain of the humanitarian charity ship MV Lifeline, continues at the Courts of Justice in Valletta, Malta August 23, 2018. REUTERS/Darrin Zammit Lupi

An activist places a flower on a coffin draped in a European Union flag during a mock funeral held by the crew members of the migrant rescue ships to symbolically bury European human rights, as the court case against Claus-Peter Reisch, captain of the humanitarian charity ship MV Lifeline, continues at the Courts of Justice in Valletta, Malta August 23, 2018. REUTERS/Darrin Zammit Lupi

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

Russian opposition leader Alexei Navalny leaves the European court of Human Rights after a hearing regarding his case against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the start of a hearing regarding the case of Russian opposition leader Alexei Navalny (not pictured) against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen during a hearing regarding the case of Russian opposition leader Alexei Navalny (not pictured) against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen during a hearing regarding the case of Russian opposition leader Alexei Navalny (not pictured) against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler

The building of the European Court of Human Rights is seen ahead of the start of a hearing regarding the case of Russian opposition leader Alexei Navalny (not pictured) against Russia at the court in Strasbourg, France, January 24, 2018. REUTERS/Vincent Kessler