Its a diversion to have an outsider as an adjudicator. The parties end up making appeals for their entrenched positions simply awaiting a judgement. Possibly the UN can set borders according to the law? Whether that would be wise is another matter.
Nigeria rescues 71, mostly women and girls, from Boko Haram (AP)
from the article: Report: Mitchell to arrive in Mideast this week with no plan, no agenda