Two former Bosnian Serb officers have been convicted and jailed for their role in the 1995 Srebrenica massacre.
Prosecutors had asked the court for higher sentences
Vidoje Blagojevic was found guilty of "complicity in genocide" and jailed for 18 years by the UN war crimes tribunal for the former Yugoslavia at The Hague.
Dragan Jokic was convicted of aiding and abetting murder and persecution and given a nine-year prison sentence.
More than 7,000 Muslims died in the eastern Bosnian enclave of Srebrenica at the end of the 1992-1995 war.
It is considered to be the worst single atrocity in Europe since World War II.
"The horrible crimes committed following the fall of Srebrenica are well known," the court said in a summary of the judgement.
"These crimes were committed in little more than one week with a level of brutality and depravity not previously seen in the conflict in Yugoslavia and are among the darkest days in modern European history."
Blagojevic and Jokic, who had denied the charges, were both given credit for time already in custody.
Jokic was the chief of engineers in the Zvornik brigade of the Bosnian Serb army which took part in the massacre.
Blagojevic commanded the Bratunac brigade of the Bosnian Serb army. He was subordinate to Bosnian Serb General Radislav Krstic, who last April became the first person to be found guilty of aiding and abetting genocide by the tribunal.
The appeals court sentenced Krstic to 35 years in prison for his leading role in the Srebrenica massacre.
The court has already confirmed that the killings in Srebrenica legally constituted genocide.
Six men accused over the massacre are still at large including former Bosnian Serb General Ratko Mladic and wartime Bosnian Serb political leader Radovan Karadzic.