The 2nd Infantry Division was formed in 1910 at the command of King Chulalongkorn, as a part of the newly reorganised Siamese army.

After the Siamese revolution of 1932 the new administration temporarily dissolved all formations above battalion level, including the 2nd Infantry Division.

After the end of the war the division was once again dissolved in 1946, this time due to budget cuts.

During the Cold War the division defended the Thai border against Vietnamese incursions and the suppression of domestic communist agitations.

[1] On 19 August 1988, the 2nd Infantry Division was designated a King's Guard unit by cabinet order (นร.020/14747).