The leaders of the United States, Australia, India, and Japan held their fourth Quad meeting in May. After a year dedicated to fighting the pandemic, here’s what they pledged to take on next.

Biden has moved to rejoin the Paris Agreement and the World Health Organization. They likely won’t be the last international agreements and institutions that the United States reenters.

The Zika virus is spreading to North America, and U.S. delays in approving research and funding could lead to a public health disaster, write Larry Brilliant and CFR’s Laurie Garrett.

A review of the Millennium Development Goals winding down in 2015 offers insights on global health efforts that could inform an even more ambitious UN initiative set to launch this year, writes CFR’s…

CFR’s J. Anthony Holmes writes that the global economic decline will slow the pace of both foreign direct and portfolio investment in Africa.