Scrolling through replies, it looks like there could be multiple contributing factors here.
The context seems to be around a soccer match with Ajax and Maccabi Tel Aviv in Amsterdam.
Maccabi supporters might have provoked some people. They supposedly sang some harsh chants about Palestine/Gaza, tore down pro-Palestine/anti-Israel posters, attacked a taxi driver, and disrupted a moment of silence for victims of the flooding in Spain. Adding to an apparent theory of provocation, Mossad agents traveled with the team.
On the other side (running out of time before leaving for work, so no tweet links for now), there allegedly was a [edit: coordinated plan] to attack, and some people attacking Israelis were actually demanding to see passports from potential victims before striking them. In other videos, attackers are demanding victims say "free Palestine" to stop them.

Scrolling through replies, it looks like there could be multiple contributing factors here.
The context seems to be around a soccer match with Ajax and Maccabi Tel Aviv in Amsterdam.
Maccabi supporters might have provoked some people. They supposedly sang some harsh chants about Palestine/Gaza, tore down pro-Palestine/anti-Israel posters, attacked a taxi driver, and disrupted a moment of silence for victims of the flooding in Spain. Adding to an apparent theory of provocation, Mossad agents traveled with the team.
On the other side (running out of time before leaving for work, so no tweet links for now), there allegedly was a pogrom of some sort to attack, and some people attacking Israelis were actually demanding to see passports from potential victims before striking them. In other videos, attackers are demanding victims say "free Palestine" to stop them.