Libya’s UN-brokered unity agreement is fragile at best and could fracture in the event of a stepped-up Western intervention against Islamic State forces, says expert Mary Fitzgerald.

The corruption scandal rocking oil giant Petrobras has far-reaching consequences for Brazil’s economy, says Eurasia Group’s director for Latin America, João Augusto de Castro Neves.

Russia’s options for combatting the plunge of the ruble are dwindling, but government intervention is likely to intensify in efforts to avert a full-blown crisis, says CFR’s Robert Kahn.

Outmatched by the Russian military, Ukrainian forces require more support from the Pentagon, including defensive weapons, says expert Steven Pifer.

It is time for the United States, Canada, and Mexico to take integration to the next level, coordinating more closely on energy, security, and trade policy, says Robert Zoellick, co-chair of a new CF…