Twenty arrested in first march since Ed Miliband declared UK’s position was that Israel’s occupation of West Bank was unlawful

Thousands of people have gathered in central London to express their support for Palestinians after three years of “genocide” carried out against them by Israel.

The demonstrators, many wearing keffiyehs and holding Palestine flags, gathered on the Embankment at midday on Saturday. Some carried placards reading “End the genocide” and “Free Palestine” as they marched towards parliament. A bride and groom appeared to be among those in attendance and a two-minute silence was held to reflect on the lives lost in Gaza.

A whirlpool of violence has engulfed everywhere from Lebanon to Yemen. Meanwhile, the west has destroyed any political authority it once had

There was a world before 7 October, 2023, and now there is a world after. For Gaza, for Israel, for the wider Middle East, and for everyone else too. Not all hinge points in history are obvious at the time. Three years on from the day it began, and precisely one year since a supposed ceasefire was agreed, this one is now impossible to ignore.

The before-and-after pictures tell part of the story. An update to Google Maps, released last week, underscores just what three years of relentless Israeli military onslaught has done to Gaza. Satellite images show how entire towns have been reduced to rubble. Mosques and hospitals, visible three years ago, have now disappeared. Meanwhile the once-empty shoreline is now crammed with tents. This is what it looks like when an attempt has been made to destroy a people.

Steve Bloomfield is the former international editor of the Observer