Hi Lesetja and thanks for contacting CTB.
I guess the answer is, "It depends."
I think the 1 advocacy group has several possible choices. (1) It can ignore the other two groups and advocate its own position. (2) It can seek to mediate between the other two groups and try to either resolve their differences or identify the points of actual agreement that they do share despite other differences. (3) It can point out the exaggerated elements in the positions of the other two groups and advocate for the middle ground.
Our materials do include information on resolving conflicts and dealing with opposition. But they mostly focus on conflicts within one group, rather than between two other groups. Click on our "Help Taking Action" graphic and then on the "Troubleshooting Guide" to find those materials in a section entitled "We are facing opposition or conflict.".
I hope this is helpful in the specific circumstances you face.
