England take on Republic of Ireland at Wembley on Wednesday - the first meeting between the two countries in more than 18 years.
The two nations have faced each other 14 times previously, with England winning five times and Ireland triumphing twice since the first international fixture was played at Dalymount Park in Dublin in September 1946.
Five Hammers - Tommy Moroney, Noel Cantwell, Bobby Moore, Johnny Byrne and Trevor Brooking - have appeared in England versus Ireland fixtures, while a number of other past and future West Ham players have also featured for the Three Lions or Boys in Green.
The first West Ham player to appear in an England versus Ireland match was Cork-born midfielder Moroney, who played 151 times for West Ham between 1947 and 1953. Moroney started the first-ever meeting between the two countries, a 2-0 win for Ireland at Goodison Park on 21 September 1949.
Another Corkman, full-back Cantwell, started the 1958 FIFA World Cup qualifier at Wembley on 8 May 1957 - a match England won 5-1, with Manchester United forward Tommy Taylor scoring a hat-trick.
Eleven days later, Cantwell captained Ireland in the reverse fixture at Dalymount Park, inspiring his fellow countrymen to a much-improved performance and a 1-1 draw.
Cantwell was himself a Manchester United player when the two countries faced one another next in a friendly at Dalymount Park on 24 May 1964. His opposing captain was West Ham's Bobby Moore, whose side ran out 3-1 winners thanks to a goal from Hammers forward Johnny Byrne and future West Ham player Jimmy Greaves.
It was a further 12 years until the two countries met again for a friendly at Wembley on 8 September 1976. West Ham midfielder Trevor Brooking wore the No11 shirt for England. Future Hammer Stuart Pearson, then with Manchester United, scored the hosts' goal in a 1-1 draw, while a young Liam Brady lined up in midfield for the visitors.
Brooking and Brady, then an Arsenal player, started again as the two again drew 1-1 on 25 October 1978 - this time in a 1980 UEFA European Championship qualifier at Lansdowne Road in Dublin.
Two future Hammers, captain Brady and young full-back Chris Hughton, were in the Ireland side when England won the reverse fixture 2-0 at Wembley on 6 February 1980, and again in a 2-1 England friendly win at the same venue on 26 March 1985.
Hughton and Hammers Academy product Ray Houghton scored the only goal of the game as Ireland scored a surprise 1-0 group-stage victory over England at the Neckarstadion in Stuttgart, Germany on 12 June 1988.
Houghton faced future Hammer Stuart Pearce when the nations met again at the 1990 FIFA World Cup, with the group-stage match ending in a 1-1 draw at the Stadio Sant'Elia in Cagliari on 11 June.
Pearce and Houghton met just five months later in a 1992 UEFA European Championship qualifier at Lansdowne Road and again in the reverse fixture at Wembley on 27 March 1991, with both matches finishing 1-1. Crystal Palace's future West Ham forward Ian Wright appeared as a substitute in the latter.
Finally, on a night football fans everywhere will want to forget, Irish former West Ham striker David Kelly and Academy graduate Paul Ince, then with Manchester United, started for England in a friendly that was abandoned after 27 minutes at Lansdowne Road due to crowd trouble.
Tonight's game will definitely feature two former West Ham players in Ireland captain Robbie Keane and Academy graduate and goalkeeper David Forde. For England, Academy graduates Glen Johnson, Michael Carrick, Frank Lampard and Jermain Defoe are all in the squad.