The United Kingdom's Prince Harry turned 27 on Thursday, September 15.
The younger brother of Prince William is spending his birthday at a Royal Air Force airfield to continue his Apache helicopter training, People magazine said.
Harry, an Army Air Corps captain, spent his 26th birthday in the same manner.
Harry is the younger son of the late Princess Diana, brother of Prince William, grandson of Queen Elizabeth II and third in line to the British throne. Harry was born at 4:20 p.m. on Sept. 15, 1984 and began his military training in 2005 at the Royal Military Academy Sandhurst, according to his official biography.
Harry spent two months of his British Army service in Afghanistan, where he served on the front lines and was a Forward Air Controller for NATO forces. He directed jets bombing Taliban positions in Helmand province.
The prince began a two-and-a-half year training course to become an Army Air Corps helicopter pilot in January 2009. He is now undergoing "conversion to role" training, which is set to end early next year.
Harry's squadron is set to return to Afghanistan in 2012 and the prince has said that he has hopes of going back to serve in the war-torn country.
Meanwhile, Harry is preparing to embark on a trip to the United States for more military training. He had visited the country in June 2010 and met with U.S. cadets. His brother William and his new wife Kate traveled to the United States and Canada in July.
Harry is set to begin his U.S. visit in October and remain in the country for at least two months. He will travel to El Centro, California to complete a additional helicopter training, which will be conducted by the UK's Defense Ministry and consists of environmental training, live firing and tactical exercises.
He is also set to visit the Gila Bend Air Force Auxiliary Field in Arizona and a take trip to Las Vegas.
Like many royals, Harry also spends time promoting his charities and taking part in other fundraising efforts.
On Monday, he attended the BGC Charity Trading Day, an annual event created to commemorate the company's 658 employees who lost their lives in the Sept. 11, 2001 attacks in New York. Prince Harry broke the world record for the largest foreign currency trade. He closed a $24.8 billion foreign exchange deal, between the UK bank Barclays London and a European counter-party, via telephone.
The Prince attended the event on behalf of Sentebale, the charity he co-founded to support vulnerable children and orphans in the southern African country of Lesotho, his office said.