In February 1593, Thai ruler Naresuan attacked Cambodia.^[62] Later on, in May 1593, 100,000 Thai (Siamese) soldiers invaded Cambodia.^[63] The increasing Siamese expansion, which later got the approval of China, drove the Cambodian king Satha I to search for allies overseas, ultimately finding it in Portuguese adventurer Diogo Veloso and his Spanish associates Blas Ruiz de Hernán Gonzáles and Gregorio Vargas Machuca.^[64] The Cambodian–Spanish War was an attempt to conquer Cambodia on behalf of King Satha I and Christianize Cambodia's population by the Spanish and Portuguese Empires.^[65] Along with the Spanish, Spanish Filipinos, native Filipinos, Mexican recruits, and Japanese mercenaries participated in the invasion of Cambodia.^[66] Because of its defeat, Spain's planned Christianization of Cambodia failed.^[67] Laksamana later had Barom Reachea II executed. Cambodia became dominated by the Thai in July 1599.^[68]