There are exceptions to the general turn sequence when things are worked out as they occur rather than in any strict order. Quite often the actions of one player will trigger some special weapon or the sudden appearance of a particular troop type. This is rather like stepping onto a land mine or sinking into quicksand consequences resulting from movement which may be conveniently resolved there and then. Inevitably there will be the odd occasion when events can be worked out in one phase or another with little real difference.