Looking inward or outward, that is the question. For some world leaders, the answer is clear.

DONALD TRUMP US PRESIDENT "From this day forward, it's going to be only America first, America first!"

Analysts say those who have long championed international cooperation now act alone.

"We just officially terminated TPP"

"The United States will withdraw from the Paris climate accord."

"I am announcing today that the United States will withdraw from the Iran nuclear deal.

But supporters of multilateralism won't follow that lead.

The SCO started out as a multilateral cooperation platform. Its goal – seeking common security.

Since its foundation, members have coordinated efforts against terrorism, separatism and extremism. The three evil elements have long been plaguing Asia. Authorities say hundreds of terror plots have been foiled. In addition, thousands of soldiers have participated in annual anti-terror exercises named "Peace Mission", prepared to tackle regional insurgences. Members have also moved together to combat cyber crimes, drug trafficking and transnational organized crimes.

XI JINPING CHINESE PRESIDENT "With the changing of times, we cannot let ourselves stay in a cold war mindset. We should promote a sustainable security outlook on Asia by upholding the ideas of commonality and cooperation."

On top of that, SCO member states are seeking to stand unified on major regional and global issues. That includes support in pursuing political solutions to the Syria and Ukraine crises, commitment to the 2015 Iran nuclear deal and acknowledgement of Afghanistan's efforts against terrorism. Member states have also agreed to push forward economic globalization and go against trade protectionism in any form.

The 2017 summit also saw new members included for the first time. India and Pakistan are long-time foes. Analysts say their inclusion into the SCO could help ease hostility and suspicion between them, and see them work together against terrorism.

With four states on the list of observers, and another six as dialogue partners, it will be no surprise if the bloc takes in more members and expands the scope of cooperation. CGTN.