Australian Opposition Leader Tony Abbott on Sunday visited Australian troops in Afghanistan, and witnessed a demonstration of their firepower. According to a spokesperson, Abbott has spent 10 hours at Tarin Kowt in Afghanistan on Saturday. He chatted with troops over lunch, toured a trade training school and was briefed by senior military personnel and Afghan leaders on the situation in the country. Accompanied by opposition defense science, technology and personnel spokesman Stuart Robert, Defense Force vice-chief Lieutenant-General David Hurley, and joint task force 633 commander, Major General John Cantwell, Abbott has observed a firepower demonstration by Australian and International Security Assistance Force (ISAF) troops. "There are many ways to serve our country, but there is probably no finer way, and I am sure no tougher way, than to be on active service in the armed forces," Abbott told Australia Associated Press on Sunday, thanking the troops for their services. Meanwhile, Immigration Minister Chris Bowen on Sunday told the Nine Network Abbott's visit would have been welcomed, but denied he would have had less access to the troops if had he visited with the prime minister. "I think he would have had full access if he was there with the prime minister but equally, now that he's gone by himself, that's perfectly appropriate as well," Bowen said. Abbott is due to return to Australia on Monday morning. Last weekend, Australian Prime Minister Julia Gillard has flown to Afghanistan to personally pay tribute to Australian troops fighting in Afghanistan, while honoring the 21 soldiers killed in the conflict since 2001. Home Affairs Minister Brendan O'Connor will on Monday farewell Australian Federal Police officers heading to Afghanistan to train the Afghan National Police.