Final answer:
The 1919 King Commission recommended that Iraq be placed under a British mandate, and this became the foundation for establishing control over the region, despite increasing resistance from local nationalists.
Step-by-step explanation:
The 1919 King Commission indeed concluded that Iraq should be placed under British mandate. Following the dissolution of the Ottoman Empire after World War I, European powers, chiefly Britain and France, established mandates in the Middle East as a form of control masked as benevolent oversight. The British mandate over Mesopotamia, renamed Iraq, faced opposition from Iraqi nationalists throughout the 1920s and 1930s. King Faisal, whom the British had originally promised the rule of Syria, accepted the throne of Iraq under the condition that Britain would control much of the government. Subsequent monarchs found themselves in similar positions, contending with increasing frustration and nationalist sentiment against the British presence. The mandate system was essentially a new form of nineteenth-century imperialism, and despite the promises of self-determination, the mandates were established without consulting the local populations.