This study measures Arab public opinion regarding Palestine, whether it is considered a central Arab issue or only a Palestinian one. It analyses how Arab citizens define themselves as either "one nation", meaning that every Arab populace is part of a larger nation with shared concerns and destiny or as belonging to individual "nation states", where country is defined by its own specific characteristics and concerns. It also analyses the relationship of this belief to their outlook on the Palestinian issue. This study focuses on the ACRPS Arab Opinion Index results since 2011.