Answer :
Final answer:
The serious conflict in Asia that contributed to the outbreak of World War Two in the Pacific began with Japan's attack on China in 1937. This incident, among other geopolitical tensions, led to a full-scale Sino-Japanese War and eventually, the United States' involvement in World War II.
Explanation:
Serious conflict in Asia contributing to the outbreak of World War Two in the Pacific began with Japan's 1937 attack on c. China. This attack, coming after a series of tensions between Japan, China, and the Western powers, was part of Japan’s ambit to expand its influence throughout Asia. Japan, motivated by its perception of Western colonialism and its quest to establish itself as a leading power in the region, initiated a full-scale invasion on China. This event, commonly referred to as the Marco Polo Bridge Incident, escalated into a war and subsequently catalyzed the Pacific Theatre of World War II. The United States, in response to continued Japanese aggression, imposed sanctions including an embargo on oil and gas sales to Japan, which consequently aggravated the conflict leading to Japan’s attack on Pearl Harbor and triggering America's participation in the conflict.
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