Five Muslim extremists were today jailed up to 28 years by an Australian court for plotting violent attacks to protest the country's involvement in War on Terror in Afghanistan and Iraq. New South Wales Supreme Court Justice Anthony Whealy handed out the sentence to the five men found guilty in October 2008 for stockpiling arms and explosives and chemical and bomb making manuals for attacks on unspecified targets. Four of the accused of Lebanese descent and the fifth one were handed maximum jail terms ranging from 23 to 28 years with the shortest non-parole period being 17 years. The men had been found with pictures and videos glorifying al-Qaeda chief Osama bin Laden and hijacked aircrafts smashing into World Trade Centre on September 11, 2001, as well as beheading and death sentences carried out by terrorist groups in Pakistan. Police also found literature from their houses which supported indiscriminate killings, mass murders and martyrdom in pursuit of violence. The five men were among nine people arrested in a large scale police crackdown in 2005 and 2006. Of those, four have pleaded guilty to lesser offences and have been dealt with.