Any church that professess Jesus Christ as "Lord" is a "part" of the "Body" that is his body, that is, his church... They are not currently working together or are in union or are of the same mind and one accord of one truth, however...
All true followers of his should be helping "The Church" the whole body and all it individual members toward this goal, not "fighting" over "their church" or "their beliefs", (that are half lies, or wrongs, and half truths, or rights), as the "one and only true church", for this does not seek to "unify" the "body", but causes divisions and strife and fighting within the body, and what does the bible say about that kind of behavior...? Or, a house or body that is "divided against itself" and what it says about those causing the dividing? For we are many members of one body with different functions and individual gifts of the spirit, but, we must learn how to be become of "one accord" and in union with the head, which is Christ...
The hand cannot be saying to the foot, "I have no need of you" ect, ect, (you guys know this one) Also, the left foot cannot be trying to take a step backward, and the right one forward... Or, a right hand doing one thing, while the left something else, when both of them are required to work together toward a common goal, the feet are used to walk and move the body, the hands are used to work, the legs or theighs to support the weight of the body and keep it standing, ect., ect., so on, and so forth, the eyes, to see, the ears, to hear and listen, the mouth, to speak, ect., ect., so on, and so forth...
And, this is the major problem in ALL the members of the body preventing this...
And causing the half lies...
But, Jesus is there also and is responsible for the half truths, and these are at war within each member of the body...
God Bless!