1.   Authorities in Serbia again blocked a UN relief convoy which has been trying for days to reach the besieged Muslim enclave of Srebrenica.

2.   And some Western diplomats viewed a Muslim enclave encircled by Bosnian Serbs as an impediment to negotiated boundaries for a cease-fire.

3.   Any territorial exchanges would probably focus on Sarajevo and the future of the eastern Muslim enclaves.

4.   Another argument over corridors centers on Gorazde, now a Muslim enclave in eastern Bosnia.

5.   Bihac, a predominantly Muslim enclave just over the border in Bosnia, was one of the key flash points for the Croatian military.

6.   A spokesman for the U.N. force said that the convoy had come from Belgrade to the eastern Muslim enclave of Gorazde.

7.   A spokesman for the U.N. force said the convoy had come from Belgrade to the eastern Muslim enclave of Gorazde.

8.   Britain and France have pledged to send thousands of reinforcements to help protect Muslim enclaves.

9.   But removing the larger groups from the Muslim enclaves might well expose them to capture by the Bosnian Serbs, which the United Nations has vowed to prevent.

10.   But the Serbs also pressed their attack on the Muslim enclave of Bihac, firing a surface-to-air missile into the area.