Unified together and apart

I love the unity that is shared by all Christian churches - but I don't think that unity has to necessarily be given expression in joint ministry. I was trying to work out why some inter-church activities float my boat and others don't. This is what I came up with. I'm passionate about healthy local churches. Wherever possible, I want to see individual churches taking responsibility for things like world mission and women's teaching and fellowship. But I also love to see churches banding together to pull off a conference or bold ministry project they never could have done apart.