Prosecutors at the murder trial of three Russians and a Ukrainian charged with involvement in the downing of the Malaysia Airlines flight MH17 over eastern Ukraine in 2014, began explaining evidence to judges in Amsterdam on Monday.
All 298 passengers and crew on board were killed, the majority of casualties being Dutch or Malaysian, but eight other nationalities were also present on the flight.
Prosecutors are scheduled to take three days to walk judges through the indictment at hearings in a top-security courtroom on the outskirts of Schiphol Airport, the departure point for the Boeing 777 which was heading for Kuala Lumpur before being shot down.
"Today we are here to do right by the 298 victims of flight MH17," public prosecutor Thijs Berger told the court.
"Determining the truth, in this case, may also contribute to averting new violence in the future," Berger told the judges.
"After all, a world that makes no effort to ascertain the truth and to punish the guilty when hundreds of innocent civilians are murdered is leaving its civilians as fair game," he added.
"And for that reason, truth and lies need to be distinguished and perpetrators need to be punished. That is our task in this courtroom," he went on.
Piet Ploeg, who lost his brother, sister-in-law, and nephew when the MH17 was downed, was at the court for the hearing.
"We get to hear the conclusions of the prosecution, and on Wednesday we will hear the sentencing demands of the prosecution. So for us, it's very important," he expressed.
Monday's hearing began amid soaring tensions between Moscow and the West over a Russian troop buildup near Ukraine that has drawn fears of an invasion.
Moscow has denied plans to attack its neighbour but demanded the West provide a set of legal guarantees precluding the expansion of NATO to Ukraine and other Russian neighbours and the deployment of the alliance's weapons there, a demand NATO has rejected.
None of the four suspects has appeared at the trial. Only one, Oleg Pulatov, has Dutch lawyers representing him in court.
Pulatov's lawyers say that he denies involvement. He is one of three Russian suspects together with Igor Girkin, and Sergey Dubinskiy. They are charged together with Ukrainian Leonid Kharchenko.
The trial began in March last year with the solemn reading of the names of all the people who died when the plane shattered in midair and plunged to the ground in agricultural fields in conflict-torn eastern Ukraine.
An international investigation into the crash concluded that MH17 was brought down by a Buk missile that was trucked into Ukraine from a Russian military base.
Investigators say the missile launcher then returned to Russia, but Moscow denies any involvement.
On Wednesday, prosecutors will tell judges what punishments they want for the four suspects, with the maximum sentence being life imprisonment.
The hearing will then be adjourned until March when defence lawyers for Pulatov will make their presentation to judges.
Both sides can make responses and final statements over the summer and verdicts are expected before the end of next year.