The retired British general spoke of his experience from the war in Bosnia and Herzegovina while he served as commander of the UN Protection Force there from January 1994 to January 1995.
Jean-Paul Sardon, director of the French National Institute for Demographic Research, gave testimony as an expert witness for Serbia and Montenegro, providing data on the number of casualties in the 1992-1995 Bosnian war.
The former prime minister and the deputy prime minister of the Bosnian Serb entity, Vladimir Lukic and Vitomir Popovic respectively, also testified in the defence of Serbia and Montenegro on Thursday, and three more witnesses were announced for next week.
Bosnia and Herzegovina called two witnesses to testify before a 16-judge panel. Andras Riedlemayer, a US expert on Islamic religious buildings, spoke of systematic destruction of mosques in Serb-controlled areas, while British General Richard Dannatt spoke of his experience of commanding UNPROFOR British troops.
The court forbade all accredited journalists to report on the content of testimonies until the last witness is heard on 28 March.
Bosnia and Herzegovina filed the suit in March 1993. This is the first time the ICJ decides on a case under the 1948 UN Convention on the Prevention and Punishment of the Crime of Genocide. A judgement is expected by the year's end.