In a Q & A video by Ayman al-Zawahiri on Monday to a Muslim forum, published this morning by ISRIA.com:
Context: He's speaking about the lack of difference between Obama and Bush --
"The promises of the two states [Israel and Palestine] and ending the settlements were made by Bush, so what's new? This is the continuation of the same Zionist crusader crime against Muslims since the end of World War II."
While he states World War II as the onset of this latest crusade, the term is rife with history.