Lawyer Muhammad Rashad al-Khatib said on Monday that Lutfi Barbari, a 31-year-old electrician, is not part of any terrorist groups.
Barbari is accused of driving a pickup truck into a group of US soldiers standing outside a store at Camp Udairi on 30 March. Fifteen soldiers were injured.
At the time, Barbari was employed by a local contractor who was doing work in the desert camp.
The incident took place less than two weeks after US forces invaded Iraq. Kuwait was the launchpad for the invasion that toppled Iraqi leader Saddam Hussein in April. But the majority of Arabs opposed the war.
“There is no medical report that proves the victims were injured,” said al-Khatib, one of three attorneys who came from Egypt to defend Barbari.
US officials said that 14 soldiers were treated at the scene for minor injuries and one more was flown to Landstuhl, Germany, for treatment of a knee injury.
According to al-Khatib, prosecutors said Barbari told investigators he was inspired by television footage of attacks on US occupation soldiers invading Iraq.
“We believe his confession was under moral duress” while Barbari was being treated at a military hospital, said al-Khatib.
Barbari was shot in the chest by a US soldier during the incident. He has been in custody ever since.
Barbari denied the count of attempted murder when his trial opened in January and his lawyers have asked for an acquittal.
If convicted, he could be sentenced to life in prison.