# September 11 terrorist attacks and global impacts

> Live situation record from CLSTR: https://clstr.news/situations/september-11-terrorist-attacks-and-global-impacts
> Updated: 2026-09-11T01:47:32.000Z. Sources: 13. Developments: 2.

The September 11 terrorist attacks involved the hijacking of four commercial aircraft by Islamist terrorists, striking the World Trade Center, the Pentagon, and a crash site in Pennsylvania, resulting in approximately 3,000 deaths. In the immediate aftermath, German Chancellor Gerhard Schröder described the acts as a ‘declaration of war against the civilized world’ and pledged ‘unconditional solidarity’ with the United States.

Long-term consequences of the attacks include profound shifts in global security and social dynamics. For the Jewish community, the attacks altered safety perceptions and increased security at synagogues. In Germany, the post-9/11 era was marked by increased scrutiny of Muslim communities and individuals with immigrant backgrounds, often involving police questioning regarding religious practices and potential extremist ties.

## Timeline

### 2026-09-11: September 11 attacks: Long-term social and security impacts

Reflections on the 25th anniversary of the September 11 attacks examine the long-term impacts on Jewish security and the increased social scrutiny faced by Muslim communities in Germany.

5 sources. https://clstr.news/cluster/september-11-attacks-long-term-social-and-security-impacts

### 2026-09-10: September 11 terrorist attacks and international response

Historical accounts detail the September 11, 2001, terrorist attacks in the US and Germany's subsequent pledge of unconditional solidarity with the United States.

8 sources. https://clstr.news/cluster/september-11-terrorist-attacks-and-international-response

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Cite as: September 11 terrorist attacks and global impacts. CLSTR, https://clstr.news/situations/september-11-terrorist-attacks-and-global-impacts