Together, the 15 high schoolers formed a team for the first World Smarts STEM Challenge. That's a science competition run by IREX, a global development nonprofit that strives to promote student enthusiasm for science, tech, engineering and math (aka STEM). Each of the 17 teams had teenagers in the D.C. area partnering with Ghanaians to identify and solve a real-world problem. 

Secretary of State Rex Tillerson will host foreign ministers and senior officials from the 67 nations that make up the Global Coalition to Counter ISIS [...] The coalition has made great strides leading the fight against ISIS in Iraq and Syria. It is a perfect example of multilateral and bilateral foreign policy, just as the White House is calling for big cuts in funds to the United Nations.

There's a new way of doing diplomacy in Ethiopia's capital, one that forsakes speeches in favour of music, sweat and bare feet. A troupe of New York-based dancers arrived in the capital Addis Ababa earlier this month to boogie their way to closer ties between the United States and Ethiopia, a major East African economy and counterterrorism partner for Washington.

When it comes to taking on the world, the two words the Trump administration swears by are “America First.” [...] For Secretary of State Rex Tillerson, who until now spent the entirety of his career at ExxonMobil, the challenge he faced on a headline-grabbing trip to Asia was how to translate President Donald Trump’s mandate into a workable foreign policy.

Global health programs — supported by U.S. and other donor countries — helped leaders to prioritize health, particularly when they supported grass-roots health advocates in Africa. Global efforts establish the expectation that governments should promote health. Funding and technical assistance from Western donors, U.N. agencies and NGOs empower national efforts.

While his boss was goading China over Twitter, new Secretary of State Rex Tillerson has been trying to build a constructive and “results-oriented” relationship with the leadership in Beijing. And though his warnings about the possibility of eventual military action over North Korea have raised hackles here, Tillerson received a warm welcome from China’s president on Sunday.