advise please!!!

[raz_atoth]

Bert,the most likely cause for the ceasefire-as others have mentioned before,is the low ammo.Here's what the cmbb manual says about it:
"Force Readiness.At a certain point, when your troops run very low on ammunition, it has the same effect as you offering a ceasefire.This represents troops not necessarily wanting to fire off their very last bullet because even if they eliminate the current enemy, in real life another one might come along very soon (beyond the scope of the game, but important to simulate in some way nonetheless). The level to which troops will expend their ammo depends on the battle type. Defenders generally will
risk using up more than attackers, except in Assaults where both sides are willing to use almost everything. In Probes, the Attacker is more cautious and will trigger this feature earlier, meaning battles will typically end sooner. Attacks and Meeting Engagements are inbetween. Note that if only one side has triggered this due to low ammo, the game will not end unless the other side also triggers, or voluntarily offers cease fire. This
feature is NOT active during Operations."