Nicaragua’s proposed Grand Canal would be one of the world’s largest engineering projects. Its proponents say it could transform the country’s economy, while critics say it could be an environmental …

The U.S. government responds to scores of disasters each year in coordination with foreign, state, and local partners, but more frequent and severe storms, fires, and floods are straining resources.

The United Nations’ top leadership position has broad authority to steer the organization’s agenda, but its impact has varied widely since 1946.

The threat of climate change and the rise of China have prompted renewed debate about the U.S. government’s role in shaping the economy.

U.S. space exploration inspired a generation of students and innovators, but NASA’s role has diminished, and the number of global space competitors is growing.

Turkey’s geography and membership in NATO have long given the country an influential voice in foreign policy, but the assertive policies of President Erdogan have complicated its role.