The campaign - which is being held throughout Ramadan - aims to raises tens of thousands for food and medicine.
Four thousand Welsh soldiers were killed or injured as they tried to capture Mametz Wood in France during the Battle of the Somme.
Community leaders in Cardiff make a stark warning after two men from the city were filmed in an Islamic extremist video.
A mosque attended by two British jihadis fighting with Islamist rebels in Syria has denied teaching extremist ideologies.
According to Sky News, the Al-Manar Centre in Cardiff has confirmed that two men who appeared alongside a third Briton in an Islamic State in Iraq and Greater Syria (Isis) propaganda video had visited the mosque.
Nasser Muthana and Reyaad Khan, both from the Welsh city, featured prominently in the video by Isis, which urged Muslims in the West to join their fight.
However, the mosque denied it encouraged members to take up arms to join extremists abroad.
In a statement reported by the broadcaster, the Al-Manar Centre said: "It is worth mentioning that ACT's stance is well known, that we are opposed to going to Syria or any other country, to participate in an armed struggle and have always made this clear."
The official logo for this year's NATO Wales Summit will be unveiled in Brussels later.
Wales Secretary David Jones and First Minister Carwyn Jones will be at the event.
It follows a reception last night to showcase the best of Welsh produce to foreign ministers from around the world.
The logo is said to draw on Wales' diverse heritage and captures some of the iconic images associated with the nation.
Incorporated within the logo is a castle icon to represent Wales' rich history, an icon of a dragon to represent the Welsh spirit, an icon of the Celtic Knot, and an icon of the Newport Transporter Bridge.
It will be used around the Summit venues and in communications to thousands of delegates and media attending the event at the Celtic Manor Resort in Newport this September.
The First Minister has given a speech to 28 foreign ministers in Brussels tonight as part of the UK's preparations to host the Nato Summit in September.
Carwyn Jones says the event's an opportunity for Wales to raise its profile on the world stage.
Our Corespondent Carole Green was there.
The First Minister says he wants to use the NATO summit in Newport in September to project "a confident and outgoing Wales, attracting investment from around the world" in areas such as the creative industries and aerospace.
Ahead of a meeting with foreign ministers in Brussels, Carwyn Jones admitted to our Correspondent Carole Green that Wales does not currently have the same global standing as Scotland, for example, but he hopes to improve that with the help of the summit.
Opposition Leader Andrew RT has used an Urgent Question in the Assembly to call for a summit of Welsh ministers and Muslim community leaders to try to find ways of tackling extremism. It follows revelations that two Cardiff men appeared in an Iraqi Islamist recruitment video.
Deputy Communities minister, Jeff Cuthbert, said he couldn't commit to holding a summit but said he would consider one as part of ongoing efforts to work with communities.
During an urgent question in the Assembly, Welsh Conservative leader Andrew RT Davies has called for Welsh ministers to hold a 'summit' with Muslim community leaders in Wales to try to work out ways of dealing with extremism.
.@andrewrtdavies calls for the Welsh Government to meet with the communities involved to discuss radicalisation in parts of Wales.
Deputy Communities minister Jeff Cuthbert said that he couldn't commit to a summit immediately but said the Welsh Government would consider such a meeting as part of moves to work with communities to combat extremism.
Welsh Liberal Democrat leader Kirsty Williams has called for a Wales-specific anti-extremism strategy. She made the call during questions in the Assembly to Leader of the House, Lesley Griffiths, who's standing in for the First Minister. Watch the question and answer above.
In the Senedd, Welsh Liberal Democrat leader Kirsty Williams has called for a specific anti-extremism strategy for Wales following the revelations that two Cardiff men appeared in an Iraqi Islamist recruitment video. Kirsty Williams said:
– Kirsty Williams AM, Welsh Liberal Democrat leader
Last year, the UK Government set up the Tackling Extremism and Radicalisation Task Force to look into the issue. While this is welcome, this should be backed by a specific Welsh anti-extremism strategy to ensure that our communities remains safe.
People will of course be very worried and upset that men who have grown up here in Wales have resorted to joining extreme and dangerous groups. Not only do we need to remember that these men are very much in a minority, but we must also look at the potential causes that have led them to take these drastic measures.
One of the British jihadis filmed in an Isis propaganda video was filmed as a teenager saying he wanted to "get rid of the evil of the world" in a film in 2011, the Mirror reports.
Reyaad Khan, 20, from Cardiff appears in a 23 minute film about problems UK teens face and how to overcome them. He said:
"You just got to get rid of the evil... if everyone can just choose the good the evil will go away.
"If you’re around people drug dealing every day its hard not to get tied into that.”
The Prime Minister's spokeswoman said 15,000 items of "jihadist propaganda" have been removed from the internet.
YouTube said last night it would take down any full-length versions of a film of British jihadists calling on young Muslims to fight in Syria and Iraq.
The Government has removed 15,000 pieces of extremist material from the web since December, about 180 per day, the spokesperson said.