Home›Browse›Project Grudge🌐EnglishEnglishFrançaisItalianoPolskiPortuguêsTiếng Việt日本語EntityQ2400383· pop 10· linked from 285 articlesProject GrudgeSign in to saveShort-lived project by the U.S. Air Force to investigate unidentified flying objects (UFOs)Available in 9 languagesFrançais日本語PortuguêsItalianoCroatianPolskiRomanianTiếng Việtvia Wikidata sitelinks · CC0