By Richard Baines October 19, 2014, 2:18 pm

The Royal Tasmanian Regiment has exercised the tradition of freedom of entry to the Hobart CBD, marking the start of Anzac centenary commemorations in the state.

The city was brought to a standstill today as 130 soldiers dressed in full parade uniform with fixed bayonets marched through Hobart.

The battalion was granted Freedom of the City of Hobart just over 100 years ago when it marched from Moonah to the Domain.

Two weeks later the first Tasmanian troops departed on the SS Geelong to serve in WWI.

Premier Will Hodgman said the battalion had a very long and proud history.

"The smallest battalion in the smallest brigade, the 12th/40th has been granted more Battle and Theatre Honours than any other battalion in the Australian Army and continues its proud tradition of service today, contributing to every major ADF operation to date," he said.

Freedom of entry is a medieval military tradition which allowed armed groups who were trusted defenders of a city, right to march through instead of taking a lengthy detour around the city's walls.

In modern times it has become a ceremonial mark of trust and confidence bestowed on a military unit and is seen as the highest accolade a town or city can extend.

Veteran Brian Grundy said freedom of entry is a rare privilege only granted on special occasions.

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12th Regiment exercises 'freedom of entry' to Hobart CBD