This page is subject to the extended confirmed restriction related to the Arab-Israeli conflict.The flag of the State of Palestine (Arabic: علم فلسطين, romanized: ʿalam Filasṭīn) is a tricolour of three equal horizontal stripes—black, white, and green from top to bottom—overlaid by a red triangle issuing from the hoist.[2] Since 2021, the Palestinian flag has been lowered to half-mast every 2 November to lament the 1917 Balfour Declaration, which was issued by the United Kingdom, supporting a "national home for the Jewish people" in what was then Ottoman Palestine.In one version, the colours were chosen by the Arab nationalist 'Literary Club' in Istanbul in 1909, based on the words of the 13th-century Arab poet Safi al-Din al-Hili: Ask the high rising spears, of our aspirations Bring witness the swords, did we lose hope We are a band, honor halts our souls Of beginning with harm, those who won't harm us White are our deeds, black are our battles, Green are our fields, red are our swords.On 1 December of the same year, the Executive Committee of the Liberation Organization established a special system for the flag specifying its standards and dimensions, and the black and green colors replaced each other.[5] The flag is similar to that of Syria's Ba'ath Party, which uses the same shapes and colours but a 2:3 ratio as opposed to Palestine's 1:2, as well as the short-lived Arab Federation of Iraq and Jordan (which had an equilateral triangle at the hoist).