Malala Yousafzai has called on the Commonwealth to protect children around the world from being exploited through child labour and trafficking.
The schoolgirl activist, who lives in Birmingham, also called for equal rights for women during her address at the Commonwealth Day Observance service at Westminster Abbey.
Malala was shot in the head by Taliban gunmen in her native Pakistan after campaigning for the right of girls to be educated.
She told the congregation:
"Children face challenges every day in their lives when they go to their schools. In Pakistan, in India and in many parts of Africa there are many barriers to education such as poverty, lack of access, violence and cultural opposition.
"In my opinion it should be the top priority that each country in the commonwealth and all over the world has a 100% attendance of each student whether girl or boy."
A year on from Malala Yousafzai's discharge from hospital in Birmingham, Faeeza Vaid, from Muslim Women's Council UK, believes the schoolgirl has encouraged and inspired girls all over the world.
Malala has become an education activist known around the world since she was shot in the head by the Taliban in Pakistan, but Faeeza Vaid would like to see her take a small break from campaigning to enjoy life in Birmingham, before going on to further fights.
ITV News looks back at a phenomenal year for Malala Yousafzai on the first anniversary of her discharge from hospital.Read the full story ›
Teenage education activist, Malala Yousafzai, has been awarded the EU's Sakhrov Prize for freedom of thought at the European Parliament in Strasbourg this morning.
Before the ceremony, Malala met with Birmingham MEP, Phil Bennion and members of the Alliance of Liberal Democrats for Europe (ALDE) group, who nominated her for the prize.
Mr Bennion said:
"Malala is an inspiration for millions. We nominated her for the European Union's highest award not only for her incredible work before she was brutally attacked, but for the tremendous courage she has shown since in continuing to fight for girls' right to education around the world."
Sir Graham Watson, a Liberal Democrat MEP and leader of ALDE, said:
"This prize is not just for Malala but for the millions of other girls and boys worldwide, Muslim and non-Muslim, who like her have been denied their universal right to education. She now personifies the fight for that right with her 'weapons of books and pens'."
Schoolgirl Malala Yousafzai, who survived an assassination attempt by the Taliban, has said conflict-ridden countries should fight only about educating their children and swap guns for pens.
The 16-year-old received a standing ovation after speaking at an event to launch her memoir I Am Malala in central London with her comments provoking regular outbreaks of applause at the Southbank Centre.
The teenager, who was shot in the head while travelling on a school bus in Pakistan last October, told the audience: "You are not powerful if you have a gun, because with a gun you can only kill.
"You are powerful when you have a book, when you have pen. Because through a pen you can save lives. And that's the change we want to bring in our society."
Teenage activist Malala Yousafzai will be reunited with two of her friends today who were in the same bus she was in when it was targeted by the Taliban last October in Pakistan.
Malala and education campaigning friends Kainat Riaz and Shazia Ramzan will open a primary school together in Scotland.
The schoolgirl will address an audience at Edinburgh University in an event hosted by former prime minister Gordon Brown.
Malala Yousafzai will soon be reunited with two of her friends who were in the same bus she was in when she was shot in Pakistan.
On Saturday morning Malala, Kainat Riaz and Shazia Ramzan will open a primary school together in Scotland.
Malala's two friends now live in the UK thanks to help received from the former prime minister, Gordon Brown's office.
Mr Brown said:
"We all know of Malala's incredible courage, strength and determination, and I'm so pleased that she will be reunited with Shazia and Kainat, two young women equally determined that every girl and boy should enjoy the most basic of human rights - a secure, safe place at school."
Following the event, Malala, Shazia and Kainat will join Mr Brown at the topping out ceremony of a new school in Burntisland, Fife, in Mr Brown's Kirkcaldy and Cowdenbeath constituency.
"I'm delighted that the people of Fife will meet these three courageous girls at first hand and, as global campaigners for the right of every child to decent schooling, their attendance marks an exciting new chapter for Burntisland Primary School."
As UN Special Envoy Mr Brown is leading a campaign to find primary school places for 57 million children who currently go without.
The teenage education campaigner Malala Yousafzai is being reunited this week with two friends who were injured in the same Taliban assassination attempt that almost killed her exactly a year ago.
Malala has addressed the United Nations and been nominated for the Nobel Peace Prize since being attacked. She will meet publicly with school friends Kainat Riaz and Shazia Ramzan for the first time in Edinburgh on Saturday morning, before opening a primary school together in Fife.
Shazia and Kainat are now studying in the UK after receiving help from Gordon Brown's office.
The reunion between the three friends is part of the launch event of the Global Citizenship Commission which will reassess 1948's Universal Declaration of Human Rights.
Malala Yousafzai has congratulated the Organisation for the Prohibition of Chemical Weapons on their winning the Nobel Peace Prize. She said:
"The OPCW is an important organisation working on the ground to help rid the world of chemical weapons.
I would like to congratulate them on this much-deserved global recognition. I would also like to thank the people and media in Pakistan, and those from all over the world, for their support, kindness and prayers.
I will continue to fight for the education for every child, and I hope people will continue to support me in my cause."
The Norwegian Nobel Committee said it has awarded the Nobel Prize for Peace to the OPCW, as it wants to contribute to the continuation of the elimination of the world's chemical arsenal.
By awarding the OPCW, the Norwegian Nobel Committee seeks to contribute to eliminating chemical weapons. #NobelPeacePrize
OPCW is an independent, autonomous, international organization w a working relationship with United Nations #NobelPeacePrize