Scotland take on Republic of Ireland in their European Championship Group D qualifier at Celtic Park on Friday night.
It is a match crucial to the fortunes of both sides in their respective bids to reach France in 2016.
Here, we look at five previous meetings between the two countries.
Scotland 4 Republic of Ireland 1 (May 3, 1961)
The two countries first met in a 1962 World Cup qualifier at Hampden Park. In front of a crowd of just under 47,000 Ian McColl's Scotland side got their campaign off to a flyer with a with a 4-1 win. A first-half double from Ralph Brand of Rangers gave the Scots a comfortable half-time lead and although Joe Haverty pulled a goal back early in the second-half, a brace from Arsenals' David Herd kept the points in Scotland. Four days later, Scotland won 3-0 in Dublin in the return game but ultimately missed out on the finals in Chile.
Republic of Ireland 1 Scotland 0 (June 9, 1963)
The Irish recorded their first win over Scotland in a home friendly two years later. Skipper Noel Cantwell scored the only goal of the game after six minutes at Dalymount Park against Liverpool goalkeeper Tommy Lawrence, who was making his debut for the visitors.
Republic of Ireland 0 Scotland 0 (October 15, 1986)
The nations were drawn together in the 1988 European Championship qualifiers. Their first clash took place in in front of 48,000 fans at Lansdowne Road, Dublin, where Jack Charlton's side were held to a goalless draw. Scotland manager Gordon Strachan, then a Manchester United midfielder, played for the visitors, whose keeper Jim Leighton was far the busier of the two number ones.
Scotland 0 Republic of Ireland 1 (February 18, 1987)
Scotland went into the return qualifier at Hampden Park believing they were in the box seat following their point in Dublin. However, that good work was undone when Mark Lawrenson scored the only goal of the game for an Irish team on the cusp of a golden era. Charlton's side went on to qualify for the Euros for the first time, albeit it took a Scotland win in their last game against Bulgaria to take them over the line.
Republic of Ireland 1 Scotland 0 (May 29, 2011)
The most recent meeting between the two teams took place three ago in the inugural Carling Nations Cup. Scotland, Republic of Ireland, Northern Ireland and Wales were involved in the round-robin competition at the Aviva Stadium in Dublin. In their final fixture, following wins over Wales and Northern Ireland, Republic of Ireland skipper Robbie Keane scored the winner when he took possession of a Paul McShane pass to clean run through and beat Allan McGregor from the edge of the box.