Anzac Day on the Gallipoli peninsula involves a huge security operation including the use of a helicopter drone.
Conducting multiple services that are both safe and solemn is a logistical nightmare for organisers.
Equipment-wise it's a bit like putting on a rock concert in a remote area.
But, additionally, strict security measures are required to combat any terrorist threat.
"The Turks invest in a lot of security here," the Australian organising Thursday's services, Tim Evans, tells reporters at Anzac Cove.
"They want to see an event that is safe and ... as far as is practically possible, managed in terms of the possibility of a security incident."
While discussing preparations a drone helicopter flies overhead.
Mr Evans, from the Department of Veterans' Affairs, explains it's taking aerial photos that will help organisers "better design and manage the site".
This year between 6000 and 7000 people, mainly Australians and New Zealanders, are expected to crowd Anzac Cove and Lone Pine on April 24 and 25 to pay their respects to the war dead.
There were 6000 pilgrims in 2012 and 6500 the year before.
Mr Evans suggests numbers aren't growing because people are waiting to see if they'll be able to attend the centenary commemorations in 2015.
Every individual entering the site gets a wrist band and passes through airport-type security screens.
Bag searches ensure alcohol is not being smuggled in.
"The Turks are always amazed at the ingenuity of the odd young Australian who might, for example, empty half the Pringle tube and put a bottle of raki in it," Mr Evans says.
"But they always get it."
There's also CCTV and Turkish military in the scrub between the Aegean Sea and the cliffs.
The dawn service itself runs for an hour.
It will feature a choir comprising current and former students from St Joseph's College and All Hallows' schools in Brisbane.
Jane Eadie, 21, will be singing. The university student's great-grandfather fought at Gallipoli with the First AIF.
"It makes it a lot more real to be able to walk along the beach and see the cliffs," she told AAP.
"I've got a younger brother in the army and to see the graves of soldiers who were the same age as him is really moving."
Year 11 student Jack Castle-Burns will be reading an excerpt from his winning essay on John Simpson Kirkpatrick and his donkey just before the dawn service.
The Canberran toured the peninsula with a Turkish guide in recent days.
"It's amazing that the Turkish allow Australians in such large numbers to come here to commemorate, especially when we were the enemies and an invading force," he told AAP.
There are two Turkish services on the peninsula on April 24.
But their big day is March 18 when they commemorate the naval battle which repelled the British and French fleet trying to enter the Dardanelles.
In 2013 about 10,000 Turks were on the peninsula that day.
Veterans Affairs' Minister Warren Snowdon, who'll lead the Anzac Day dawn service, later told AAP he was confident about security.
"The security arrangements put in place principally by the Turkish government are very, very tight," he said.
"So I'm reasonably relaxed. The organisation has been very good with a great deal of co-operation between all the authorities."
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