What is Zamboanga Peninsula?
{{Infobox settlement <!-- Basic info --> |official_name = Zamboanga Peninsula |other_name = Region IX<br />Western Mindanao (formerly) |settlement_type = [[Regions of the Philippines|Region]] <!-- Skyline --> |image_skyline = {{Photomontage | photo1a =View over Pagadian City - panoramio.jpg{{!}}Skyline of Pagadian | photo2a ={{!}}Skyline of Zamboanga City | size = 250 | position = center | spacing = 2 | color = transparent | border = 0 | foot_montage = Skyline of [[Pagadian City]] (top), and the aerial view of [[Fort Pilar]], [[Zamboanga City]] | }} |image_alt = |image_caption = <!-- images and maps --> |image_flag = |flag_size = 120x80px |image_seal = |seal_size = 100x80px |image_map = {{PH wikidata|image_map}} |map_caption = Location in the Philippines <!-- Motto --> |nickname = |motto = <!-- Location --> |coordinates = |subdivision_type = Country |subdivision_name = [[Philippines]] |subdivision_type1 = [[Island groups of the Philippines|Island group]] |subdivision_name1 = [[Mindanao]] <!-- Smaller parts (e.g. boroughs of a city) and seat of government --> |seat_type = Regional center |seat = [[Pagadian]] |largest_city = [[Zamboanga City]] <!-- Politics --> |leader_title = |leader_name = <!-- Area --> |area_total_km2 = 17,056.73 |area_footnotes = <!-- Population --> |population_as_of = 2015 |population_total = 3,629,783 |population_footnotes = {{PH census|2015}} |population_density_km2 = auto <!-- General information --> |timezone = [[Philippine Standard Time|PST]] |utc_offset = +8 |iso_code = PH-09 <!-- Others --> |blank_name_sec1 = [[Provinces of the Philippines|Provinces]] |blank_info_sec1 = {{Collapsible list | titlestyle = fon