With an indictee of the ICC riding so high, the court looks isolated as it tries a sitting head of state for the first time.Messrs Kenyatta and Ruto face long prison sentences if convicted.
American officials are to decide by Wednesday whether they will participate in the conference and have indicated that concrete action, namely the transfer of indictees to The Hague, or at least a timetable of planned transfers, would be necessary for them to take part.
There is one war-crimes trial at the special court, of a group accused of taking part in a massacre of Croatian prisoners from Vukovar in 1991.At the Hague tribunal judges are now examining cases of lesser ranking indictees to see whether they can be tried back home.
Roughly two thirds of the tribunal's indictees were members of Serb forces or associated with them.
He said his country's cooperation with the court had been "significant and effective both in terms of arrests and transfers of indictees".
The Yugoslavian tribunal's clean record in bringing all its indictees to book shows the power of positive incentives when it comes to arresting fugitives from international justice.
The last of the tribunal's 161 indictees to be apprehended, he was finally arrested on Fruska Gora, a hilly area about 18 miles (30km) from the family home.
The Americans are also growing tired of pressing Serbia to hand over indictees to The Hague.
Mr. Racan also faces likely mass protests from war veterans and right-wingers, who oppose a handover of indictees.
In addition, the government must provide help in the "surrender and transfer of indictees or assistance in their apprehension".
