Operation Krohcol, or the Battle for The Ledge, was a British operation in December 1941 to move into southern Thailand following the Japanese invasion of Malaya and of Thailand during World War II. It was authorised by Lieutenant-General Arthur Percival as a "mini Matador" after Operation Matador, a pre-emptive strike into Thailand which had been opposed by the British government and was not carried out. Due to delays in authorisation by Percival and in the forwarding of his order, the need to reorganise the troops for Krohcol instead of Matador, and resistance from Thai policemen the Krohcol column did not reach the Ledge in time.