Irgun
https://en.wikipedia.org/wiki/Irgun
Irgun was described as a terrorist organization by the United Nations, British, and United States governments, and in media such as The New York Times newspaper,and by the Anglo-American Committee of Inquiry.
Menachem Begin, born in Belarus, the 6th Prime Minister of Israel, was called a terrorist and a fascist by Albert Einstein and 27 other prominent Jewish intellectuals in a letter to the New York Times which was published on December 4, 1948. Specifically condemned was the participation of the Irgun in the Deir Yassin massacre.
"terrorist bands attacked this peaceful village, which was not a military objective in the fighting, killed most of its inhabitants – 240 men, women and children – and kept a few of them alive to parade as captives through the streets of Jerusalem." The letter warns American Jews against supporting Begin's request for funding of his political party Herut, and ends with the warning:
"The discrepancies between the bold claims now being made by Begin and his party and their record of past performance in Palestine bear the imprint of no ordinary political party. This is the unmistakable stamp of a Fascist party for whom terrorism (against Jews, Arabs, and British alike), and misrepresentation are means, and a "Leader State" is the goal."[30]
OSS Assessment 10/1944. https://www.cia.gov/readingroom/docs/DOC_0001225544.pdf
Book: https://www.amazon.com/Irgun-Revisionist-Zionism-1931-1948-History/dp/1526728699