 But even in these instances, only a handful of disputes have been so serious that they have led to organisational breakaways, and for a political body that has seen thousands of members join over a century of activity, this is remarkable.While sometimes damaging to the Party, these have always involved very small numbers of dissidents who have either left the organisation voluntarily or who have been expelled by a Party Poll.In each case they have been more an instance of splintering than splitting.