KABUL (AFP) - Afghan President Hamid Karzai registered Monday to run for a second term in August elections, including on his ticket a controversial warlord despite international concerns over his past. Karzai signed up for the poll at the offices of the Independent Election Commission with Mohammad Qasim Fahim, a key figure from the 1990s civil war, and current vice president Karim Khalili. We will be making mistakes again, like in the past, but our aim is to serve the people of Afghanistan, he said in a brief address to a crowd of journalists. His inclusion of Fahim on his ticket to become one of two vice presidents should he win the August 20 election was a surprise considering Fahims controversial past. Fahim, in his early 50s, gained a reputation for ruthlessness during his role during the civil war as military commander for the famous late anti-Soviet hero Ahmed Shah Massoud. He has been accused of human rights abuses and is said to have stockpiled weapons in the Panjshir Valley north of Kabul. After considerable international pressure, Karzai dropped him as a running mate in October 2004 elections because of his past and allegations of abuses. This year there have also been behind-the-scenes calls for Karzai to drop Fahim, with critics saying this could legitimise Afghanistans former warlords.