The Queen will attend the centenary, which has been put together by the four church leaders in Ireland.
Ms Foster said: “It was an event to reflect, to look at reconciliation, to look hopefully to the future.
“Right throughout this decade of the centenary, there have been a number of events that people have attended, of course famously, the Queen in 2011 went to Dublin.
“When she was there, she acknowledged 1916, and those who took part in the rising against the British, when her grandfather would have been monarch at the time.”
Foster did not hold back in her view of the Irish President’s decision to snub the Queen
Higgins said the title of the event was no longer politically neutral
The former DUP leader continued: “All of that despite the fact that she had suffered at the hands of Irish terrorists directly herself with the murder of Lord Mountbatten.
“So she has set the standard very high for reconciliation and marking the past.
“I think this is a mistake, I think it is hugely disappointing and it’s not just unionists that have reflected that.
“The Alliance party have urged the President to reconsider. The former Taoiseach has said he should be there.
Foster criticised Higgins’ move to decline an invitation to the centenary
“The Roman Catholic archbishop has said the decision was unexpected, and another religious leader has said it is baffling.
“It is a step backwards. It does damage relationships at a time when relationships are not good due to the Northern Ireland Protocol.
“I can’t understand why he has taken this decision.”
President Higgins insisted it was not a personal snub of the Queen
President Higgins said the invitation sent to him for the event had referred incorrectly to him as the president of the Republic of Ireland, rather than the president of Ireland.
He said the title of the event, which refers to the partition of Ireland and the foundation of Northern Ireland, was no longer politically neutral.
The Irish President, which is largely a ceremonial role, said his decision to decline the invitation came after six months of consideration and insisted it was not a personal snub of the Queen.
Speaking from Rome, he insisted he was not involved in any “boycott” of events and he had “no difficulties” appearing at other engagements in Northern Ireland alongside the Queen.
Source: EXPRESS CO UK