Abstract. The war that broke out in October 2024 between Israel and the Islamic Resistance Movement (Hamas) in the Palestinian Gaza Strip caused a wide resonance far beyond the Middle East. One of the echoes of the conflict was the rise of threats related to terrorist and extremist manifestations in European countries. In particular, a significant increase in xenophobic (primarily anti-Semitic and Islamophobic) manifestations was recorded; representatives of the European states’ special services issued warnings about the possibility of terrorist attacks provoked by the Gaza war. The events in the Gaza Strip have become both an indicator of the sentiments existing within European societies that are far from the ideas of universal tolerance promoted by the establishment and a catalyst for intercommunal tensions in Europe. To a certain extent, the “message” carried by certain terrorist actions in European countries can also serve as a reminder to society about conflicts, especially the ones in the Middle East. In this regard, it is important to mention the easily noticeable difference between the approaches of European countries to conflicts in Ukraine and in the Gaza Strip. If in the former case the European countries took an uncompromising anti-Russian position, coupled not only with sanctions against Russia, but also with a boycott of everything Russian, then in the latter case, the attitude towards Israel’s harsh actions, leading to mass civilian casualties among the Palestinians, is not so obvious. Ritual calls to reduce the suffering of the civilian population are often coupled with open support – in word and deed – for Israel in its confrontation with Hamas. The article examines the potential and real threats associated with terrorist activity in Europe. The growth of xenophobic sentiments in Europe, as well as the widespread dissemination on the Internet of images of civilians killed in the Israeli-Palestinian conflict zone on both sides, serves as a breeding ground for radicalization of some European residents and, possibly, a harbinger of acts of extremist and even terrorist violence, in which the main danger is the jihadist underground operating in European countries. From the point of view of the terrorist threat to Europe, parallels are drawn between the situation related to the Israeli-Palestinian conflict and the recent conflicts in other regions (such as the invasion of Iraq, the anti-terrorist campaign in Afghanistan, and the war in Syria). Differences are also noted between conflicts in which European countries were or remain directly involved, and the war in Gaza, where Europe’s involvement is not direct. In addition, the possibility of terrorist manifestations by various actors (both internal and external to Europe) is analyzed, and it is concluded that homegrown self-radicalized lone extremists pose the greatest danger to European countries.