UUPG Definition. Joshua Project states:

An unengaged unreached people group (UUPG) has no known active church planting underway. According to the IMB Global Research Office:

“A people group is engaged when a church planting strategy, consistent with evangelical faith and practice, is under implementation. In this respect, a people group is not engaged when it has been merely adopted, is the object of focused prayer, or is part of an advocacy strategy.”

At least four essential elements constitute effective engagement:

• apostolic effort in residence;
• commitment to work in the local language and culture;
• commitment to long-term ministry;
• sowing in a manner consistent with the goal of seeing a Church Planting Movement (CPM) emerge

All unengaged unreached people groups (UUPGs) are by definition unreached people groups (UPGs). All unreached people groups (UPGs) are not necessarily unengage; many are engaged. Put another way, UUPGs are a subset of UPGs.