After hosting Queen Elizabeth in October, Australia will welcome on Nov. 16 and 17 U.S. President Barack Obama who will visit Canberra and Darwin.

During the two-day trip, the U.S. president will address a special joint session of the Australian Parliament. Mr Obama will also visit the War Memorial to mark 60 years of alliance between Canberra and Washington.

The Australian Capital Territory (ACT) government will restrict entry to the area, particularly those in the vicinity of the memorial. It will also ban the sale of some items such as flares, megaphones, large flags and offensive banners.

The ACT Police, besides isolating the memorial from 6 a.m. to 12 noon, will also removed banners or signs within the area that have political or racial contents that would likely cause offence.

ACT Attorney General Simon Corbell said the territory police would also have the power to screen spectators.

Among the groups expected to take advantage of Mr Obama's visit to air their disagreement with Labor government policies are anti-carbon tax campaigners.

ACT Police Superintendent Michael Chew said the police would use common sense in wielding their extra powers.

"We are in Australia and it is everyone's right to put their view forward. We are in no way trying to stifle that," Mr Chew told News.com.au.