Private Seán Rooney's body is being repatriated home from Beirut in Lebanon to Ireland today.
His family will be reunited with the 24 year-old's remains at Casement Aerodrome at Baldonnel in Dublin this morning.
Three investigations are underway into his death in an attack during UN Peacekeeping duty in Lebanon on Wednesday.
Taoiseach Leo Varadkar says people will be paying respects to his family.
"The main thing I think this week really is to stand with and express our condolences to private Rooney's family, his friends and colleagues because it's been a long time since we lost a soldier in combat in Lebanon, but it also reminds us how important that mission is.
"I've been there, had an opportunity to meet with the soldiers me with the local community, and it's allowed people in that part of Lebanon, for the last few decades to lead a relatively normal life."
