Besides tackling COVID-19 and climate change, a unifying force within the Quadrilateral Security Dialogue is undoubtedly the member countries’ response to China. As the May Quad summit is underway, analysts must assess both how the Quad will react to China as well as how China will respond to the Quad alliance.

With the shadow of the Russia-Ukraine crisis looming in the background, America’s midterm elections will be a test of voters’ mood. Donald Trump’s sway over the Republican Party will be reinforced or repudiated. But economic factors may be the decisive factor.

Views differ on what triggered the current conflict. But whatever the pros and cons of NATO expansion, the conclusion must be that China, not Russia, is the greater long-term, structural and potentially lethal challenger to America.

The phrase “Ukraine today, Taiwan tomorrow” has been heard frequently in Taiwan since the outbreak of the Russia-Ukraine conflict. But separatists on the island are not sure the United States would come to their rescue if Beijing moved toward reunification.

The Ukraine crisis has demolished many boundaries. It was out of control from the beginning, since Russia, Ukraine and the U.S. are all unwilling or unable to compromise. Time will tell, though it may not indicate which side to take.

The concept, introduced by President Xi Jinping, can inform China-U.S. cooperation. The two countries need to seek their common security — and that of the world — by evolving and developing together.

The crisis in Ukraine quickly led China-observers to draw comparisons to the similar provocations that exist in the Taiwan Strait regarding Taiwanese sovereignty and Beijing’s desire to take control of the island. The way Russia’s offensive is unfolding can lead to sobering takeaways for all sides party to Taiwan and China’s standoff.

China is gaining influence for a reason: Its approach is helpful — and this irritates the United States. But the Solomon Islands is a sovereign country and as such is entitled to develop security relationships as it sees fit.

South Korea is signaling a dramatic reorientation in its foreign policy, and it could become a key player in an expanded Quad platform.

Europe’s fear, exacerbated by heavy dependence on Russia for energy, has been exposed more clearly by the conflict. Along with other factors, the fear is likely to result in a stricter and more selective EU approach to China.