On 2 November, the Duke and Duchess visited the UNICEF Supply Division, which supplies food to malnourished children globally, in Copenhagen, Denmark. On St. Patrick's Day in 2012, the Duchess carried out the traditional awarding of shamrocks to the Irish Guards at their Aldershot base; this was her first solo military engagement. On 19 March, she gave her first speaking engagement for the opening of the Treehouse, a new children's hospice opened by East Anglia's Children's Hospices, of which she is a patron. The Duke and Duchess were announced as ambassadors for the 2012 Summer Olympics in London, alongside Prince Harry. As part of her role, the Duchess attended numerous sporting events throughout the games. In September 2012, the Duke and Duchess embarked on a tour of Singapore, Malaysia, Tuvalu, and the Solomon Islands to commemorate the Queen's Diamond Jubilee across the Commonwealth. During this overseas visit, she made her first official speech abroad, while visiting a hospice in Malaysia, drawing on her experience as patron of East Anglia's Children's Hospices. The Duke and Duchess attended further celebrations of the Jubilee throughout the year, including the Thames Diamond Jubilee Pageant in July.