Just looking for advice. Recently, due to major hospital renovations, our High dependency Unit (HDU) and Intensive Care Unit (ICU) were merged. This combined the staff of both units. The problem is that despite being together for several months there is still very much an "us and them" mentality. There exists a great deal of tension. Some staff from the HDU refuse to care for ICU patients and most of the ICU staff refuse to care for the HDU patients. With the merger the HDU charge nurse was "reallocated" and the ICU NUM now has responsibility for the merged staff and patient load. What can we do to try and break down the barriers?