People on O'Connell Street, Dublin, tomorrow should not dive for cover when they see armoured personnel carriers and Army bomb disposal teams in their midst.
Their presence will have nothing to do with the war on terrorism, anthrax scares or any threat against the State.
Instead, the armoured vehicles and hundreds of Army personnel will be in the city centre for a parade to mark the end of 23 years of peacekeeping service in Lebanon by the Defence Forces.
The parade begins just before noon and will, according to Defence Forces press officer Comdt Kieran McDaid, be the largest military parade in the State since the early 1970s, when Defence Forces personnel took part in ceremonies to mark the anniversary of the Easter Rising.
He expects large crowds to turn out for the parade, which will be viewed from the GPO by the President and commander-in-chief of the Defence Forces, Mrs McAleese.
Among the 1,600 troops who will parade from Westmoreland Street to Parnell Square, led by the Army No 1 band, will be members of the 89th Infantry Battalion, the last unit to serve in Lebanon, and about 200 men and women who depart next month for a new peacekeeping mission in Eritrea and Ethiopia. Members of the Air Corps and Naval Service will also take part.
Also paraded will be the SISU armoured personnel carrier and an AML90 armoured fighting vehicle, used by the troops in Lebanon.
Floats will also show a slice of life of troops in Lebanon including the work of bomb disposal teams.
In a separate commemoration for invited guests at about 12.45 p.m. an inter-denominational prayer service will take place at the Garden of Remembrance.
It will include a wreath-laying ceremony with wreaths to be laid by the President, the Taoiseach, Mr Ahern, and the Chief of Staff of the Defence Forces, Lieut Gen Colm Mangan. A representative of each of the families of the 47 men who died in Lebanon will lay floral tributes.