In the weeks and months following the attacks, UK Prime Minister Tony Blair spoke of a new world order, while he and US President George W Bush concentrated on securing support for the international coalition against terrorism and the bombing campaign in Afghanistan.

One year on and some countries have been severely affected whilst others seem relatively unchanged.

Americans continue to live with the fear of further attacks, with the United States now preparing for a long and new kind of warfare.

Mr Blair had linked the eventual defeat of terrorism to the resolution of the Middle East peace process, but the past year has seen an escalation of the region's conflict.

How do you think the world has changed over the past year? What impact has the war on terror had on flashpoint regions such as the Middle East and Kashmir?

Yes, the world has changed. The event has exposed religious extremism and particularly Islam's role in funding such terrorist organisations.
H. Singh, USA

The world has certainly changed. Now Bush has a free hand in attacking anyone who disagrees with him, in the name of freedom. What hasn't changed is the militarism of the US establishment.
Dave, France

No one can guarantee the war against terrorism is going to prevail until the core issue of the Middle East crisis is solved peacefully.
Sivapalan, London, UK

Don't you think the Islamic world is ashamed of Osama? Let's celebrate humanity.
Vijay, Chennai, India

The world has changed for the US and for the countries and peoples who believe the world belongs to US. There are no changes when the US and others see 3,000 people killed in Kashmir by the same evil spirit.
Rajesh Adukkadukkath, Bangalore

The West's call to arms will appeal to a large number of the unwashed

Robert Norman, London

Why are we giving this so much attention when reportedly over a million people in southern Africa are facing starvation? In Angola, Western companies do million dollar deals for oil and diamonds with a regime that does not feed its people. In Burma, Western multinationals do deals with a government involved in genocide and ethnic cleansing. In Israel and Palestine two Palestinians have died for every Israeli. Osama Bin Laden and his cohorts are barbarians intent on installing themselves in power. But until we start to address fundamental inequalities and unfairness in the world system the West's call to arms will appeal to a large number of the unwashed uneducated masses.
Robert Norman, London, UK

In my view there has been no significant change in the world. These are only rumours disseminated by those who try to secure their own interests. It was really unfortunate that those involved in the attacks were Muslims. Islam strongly condemns such an evil act. If we think in depth about the root causes of the event, any wise guy will find that Muslims around the world in the current conflicts are all victims of the terrorism of the war against terror.
Zabeh, Peshawar, Pakistan

My world has changed a great deal. I have become more proud of my country, even if the world seems to look at my country in a negative light.
April-Liesel, Los Angeles County, CA, USA

It caused us to wake up to the fact that peace is not achieved through war

Beth Strachan, Vancouver, Canada

11 September did not change the world. It is a sad confirmation that despite the rhetoric and technological advances of modern human beings, violence is still the preferred method of dealing with problems. More violence will not solve the problem and power should not be measured in terms of military strength. The only way that 11 September could possibly change the world is if it caused us to wake up to the fact that we all share this planet and that peace is NOT achieved through war.
Beth Strachan, Vancouver, Canada

Yes, the world has distinctly divided into two groups. One that respects human values, freedom and fundamental rights and the other which supports, finances and inculcates the menace of international terrorism and religious fundamentalism.
Mahesh Chandra Somani, Oulu, Finland

Those who perpetuate the rumour that Americans are shaking in their boots are merely indulging themselves in wishful thinking

Linda, Miami, USA

On 11 September I thought that life as I knew it had ended. But now, a year later, I realise that it didn't. Those who perpetuate the rumour that Americans are shaking in their boots, or have changed in any fundamental way are merely indulging themselves in wishful thinking. Our truths and our culture endure.
Linda, Miami, USA

My view of the world has changed. I became aware of the worldwide war against the West by radical Islam. Their goals are to take what they can by terror and force.
Lori Wilder, Rosedale NY USA

The terrorist attack on 11 September has changed the world in one way. Great powers still believe in the traditional way of fighting with the exception of guerrilla war. But the suicidal attack of terrorists is so unpredictable, so unexpected, so complete and so destructive that no scientific methods can prevent it. Except for the loss of the life of the attacker, it is so inexpensive that anyone can afford it and put into practice.
Agha Ata, Houston, USA

Has the world changed? Apparently it has but not really. There has not been any change in the political philosophy, social set up, business system, means of production, educational system or views on human rights. Some change is visible in relations among nations, but this has not changed the world. No-one is born a terrorist. It is resentment and helplessness that drives a man to resort to this action.
Professor Mukhtar Ali Naqvi, Orlando, USA

After 11 September, the whole meaning of life, in all of its aspects has changed

Nelson Petronilho, Portugal

After 11 September, the whole meaning of life, in all of its aspects has changed. I can't remember how the days were before 10 September. Since 11 September, people in different countries are affected and divided between what is right or wrong. A terrorist attack today in any part of the world just seems routine, and life goes on. Terrorism and fear are now simply part of our daily life and vocabulary.
Nelson Petronilho, Portugal

Unprepared for 11 September? Yes we were. Most Americans, like me, did not recognise the level of hate and evil permeating our global world. And for that, I make no apology; I liked the world much better absent of that realisation.
Alice Thompson, Baltimore, MD

The murderous violence of 11 September has transformed the very language of my generation. Today we speak in a sort of code of things that never used to trouble us - of militants, terrorists, security, patriotism, human rights. We are preoccupied with the edifice of our cultural heritage: Western civilisation and history and languages. The fundamental shock to our world has made us, the survivors, re-examine who and what we are and to realise how little we really know of the things all around us.
Inna Tysoe, Davis, CA, USA