1.   A Bosnian victory closing the corridor would probably doom all Serb-held territories to the west.

2.   If the corridor were closed, all Serbs west of Brcko would be cut off from resupply from Serbia or the rest of Serb-held territory in Bosnia.

3.   The corridor was closed by Serb officials on Wednesday due to heavy shelling.

4.   Many corridors were closed for security reasons making the warren of passages around the building even more difficult to negotiate than usual.

5.   Neither the Bosnian government nor the Croatians have been prepared to try to close the corridor, which the Serbs have warned they would defend to the last.

6.   Russian soldiers later moved to close the corridor.

7.   The Bosnians are not inclined to accept the plan and might even try to close the corridor.