On Wednesday, the Nikkei 225 Index decreased by 0.5%, slipping below 52,300, while the broader Topix Index declined by 0.4% to 3,525. This downturn marked the end of a two-day rally for Japanese stocks, as investors chose to secure profits from major companies. Adding to the negative sentiment were geopolitical tensions, sparked by China's decision to impose export restrictions on military-use products to Japan. This move followed comments made by Prime Minister Sanae Takaichi about Taiwan last year. The export restrictions encompass a broad array of items, such as electronics, sensors, as well as equipment and technologies relevant to the shipping and aerospace industries. Shares in defense-related sectors faced pressure, with Mitsubishi Heavy Industries dropping 1.5% and Kawasaki Heavy Industries decreasing by 1.1%. Other prominent companies saw losses too, including SoftBank Group (-0.5%), Mitsubishi UFJ (-0.7%), Sony Group (-2.8%), Toyota Motor (-2.9%), and Tokyo Electric Power (-4.6%).