Police in Amsterdam arrested more than 20 people after clashes erupted outside a sold‑out Hanukkah concert at the Concertgebouw featuring Israel Defense Forces chief cantor Shai Abramson, where hundreds of demonstrators gathered to denounce Israel’s military campaign and his presence as an official IDF representative. The situation escalated when protesters ignored orders to disperse and confronted officers in the streets around the venue, turning the planned festive event into a tense standoff between pro‑Palestinian activists and Dutch police.