United States of America 3,000 IJA Soldiers 4 Cruisers The Battle of Parang, Cotabato in 1942 saw the Japanese Kawaguchi Detachment land on the shores of Parang town in Cotabato province, Philippines, on April 29, 1942, as part of their invasion of Mindanao, facing resistance from the Philippine Army's 2nd Regular Regiment under Lieutenant Colonel Calixto Duque, who managed to delay the Japanese advance for several hours despite eventually being forced to withdraw due to the overwhelming Japanese forces and the fall of nearby Cotabato City; this battle marked a key point in the Japanese occupation of southern Mindanao.

Duque trained his inexperienced men almost everyday but with limited arms, ammunition, and fresh recruits that composing his regiment he relegated to just delay the advance of the Japanese as long as his unit can and withdraw to Lanao or Cotabato City.

[1] April 29, 1942 The Kawaguchi Detachment landed simultaneously in both Cotabato City and Parang, aiming to secure the vital highway connecting the two areas.

They moved northward to capture Dansalan in Lanao with the objective of linking with the Kawamura Detachment in Cagayan.

Duque's resolute leadership was largely responsible for preventing the enemy from gaining in is rear areas and preserved the combat integrity of his regiment.