For Japan with long-standing disputes over Russian-held islands, Russia's invasion of Ukraine on Thursday is an occasion testing how true the nation is to basic democratic principles such as the rule of law, foreign policy experts say.The situation surrounding Ukraine has a massive implication on the Indo-Pacific region, they say, adding that China's military assertiveness, especially against Taiwan, would possibly further grow if Japan sets a bad precedent of showing a tolerance to altering the status quo by force.After massing an estimated 190,000 troops near Ukraine's borders, Russia on …READ FULL ARTICLE