The Wartime League was a football league competition held in England during World War II, which replaced the suspended Football League. The exclusion of the FA Cup in these years saw the creation of the Football League War Cup.
Throughout the latter 1930s it was becoming inevitable that a Second World War with Germany was coming. On 3 September 1939 following Germany's invasion of Poland, Neville Chamberlain announced war on Nazi Germany.
On 14 September 1939, the government announced football games would continue but not under the divisions that the game traditionally held season to season. The Football League survived 18 League matches before it was abandoned. After a fifty-mile travelling limit was established, the football association divided the football league into separate regional leagues with reduced attendance numbers. In the interests of public safety, the number of spectators allowed to attend these games was limited to 8,000. These arrangements were later revised, and clubs were allowed gates of 15,000 from tickets purchased on the day of the game through the turnstiles.
Football stadiums during this time were used as military bases. Many footballers during this time left their careers to join the Territorial Army. The lack of numbers in squads saw clubs inviting guest players to play. Between September 1939 and the end of the war, 784 footballers joined in the war effort. 91 men joined from Wolverhampton Wanderers, 76 from Liverpool, 65 from Huddersfield Town, 63 from Leicester City, 62 from Charlton, 55 from Preston North End, 52 from Burnley, 50 from Sheffield Wednesday, 44 from Chelsea, 41 each from Brentford and Southampton, Sunderland and West Ham United, and 1 from Norwich City F.C.