The final security preparations are being put in place in Wales ahead of what some see as the most important Nato summit for some time. Key discussion points will be the alliance's response to events in Ukraine, the threat posed by Islamic State (formerly known as Isis) in Syria and Iraq and the transition to an advisory mission in Afghanistan.

A 12 mile security fence has been erected around Newport's Celtic Manor Resort, the main venue for the summit. Cardiff Castle is also encircled by a high fence.

Tourists and residents in Cardiff say the security measures are over zealous. "I just can't believe they actually need them when the castle has huge, great, big thick walls designed to keep baddies out. So it just seems ridiculous," said a tourist on one of Cardiff's open-top tour buses.

The 4-5 September summit will be attended by more than 150 heads of state and officials. Police have said that about 9,500 officers will secure the event, which is expected to draw a large number of protesters. Authorities have warned that a minority are expected to try to disrupt proceedings and challenge police.

Security fencing erected in preparation for the Nato summit runs along the edge of the M4, next to the Celtic Manor Resort in Newport
Security fencing erected in preparation for the Nato summit runs along the edge of the M4, next to the Celtic Manor Resort in Newport(Reuters)
Vehicles pass a security fence that has been erected for several miles around the Celtic Manor Resort, venue of the Nato Summit
Vehicles pass a security fence that has been erected for several miles around the Celtic Manor Resort, venue of the Nato Summit(Getty)
An armed police officer stands guard outside the main gates of the Celtic Manor Resort
An armed police officer stands guard outside the main gates of the Celtic Manor Resort(Getty)
People shelter in a marquee erected at the peace camp in Tredegar Park, close to the Celtic Manor Resort
People shelter in a marquee erected at the peace camp in Tredegar Park, close to the Celtic Manor Resort(Getty)
A woman arrives at the anti-Nato peace camp in Tredegar Park, Newport
A woman arrives at the anti-Nato peace camp in Tredegar Park, Newport(Getty)
A man stands next to a giant banner outside the anti-war protest camp in Newport
A man stands next to a giant banner outside the anti-war protest camp in Newport(Reuters)
A cyclist passes the security fence that has been erected in front of Cardiff Castle
A cyclist passes the security fence that has been erected in front of Cardiff Castle(Getty)
People pass through a pedestrian gate in the security fence in front of Cardiff Castle
People pass through a pedestrian gate in the security fence in front of Cardiff Castle(Getty)
A demonstrator holds a sign before an anti-war protest march in Newport
A demonstrator holds a sign before an anti-war protest march in Newport(Reuters)
A demonstrator wearing a Guy Fawkes mask takes part in an anti-war protest march in Newport
A demonstrator wearing a Guy Fawkes mask takes part in an anti-war protest march in Newport(Reuters)
A demonstrator wearing a Guy Fawkes mask takes part in an anti-war protest march in Newport
A demonstrator wearing a Guy Fawkes mask takes part in an anti-war protest march in Newport(AFP)