If humanitarian need can't move the Trump administration to save Puerto Rico, then perhaps American self-interest will: The island is a crucial part of the country's economic and military machinery.
Ten months of data reveal some alarming trends.
Almost hidden in the orderly rows of men's names on the Vietnam War Memorial are those of eight female nurses who died in the conflict.
Not all who fled Vietnam at the end of the war wanted to be resettled in the US. But those who returned faced an unwelcoming government.
Is there honor in a losing battle? The US military faced this question in Vietnam. Its response would eventually change how the media covered war and how Americans perceive it.
US military bases usually get their electricity from the civilian grid, which is vulnerable to attack and to disaster. Solar-powered microgrids could protect national security, and would save money.
What should America's role in the world be? A lot of people have an answer, but few of them agree.
Whether it be African-Americans, Catholics or transgender people, the armed forces have played a vital role in shaping US social policy toward the country's minorities.
Congress is trying to curb the president's ties to human rights abusers, harkening back to landmark legislation of the 1970s.
Saudi Arabia and the UAE led a group of countries that have severed all ties to fellow American ally Qatar over its foreign policy. The US will play a key role in whether it accedes to their demands.
For-profit corporations are deeply embedded in US national security infrastructure – and they're not going anywhere.
An Army veteran and professor of rhetoric explores poetry written by veterans about a divisive holiday born of the Civil War.
President Trump's new executive order on cybersecurity signals some significant new federal cybersecurity efforts.
Running the US, it turns out, is nothing like running a business.
During the war, fear of being undermined by the enemy sparked restrictions on freedom of speech. As a result, thousands of Americans were prosecuted.
Trump's first budget proposal would boost defense spending by US$52 billion, but his desired military buildup is premised on misleading claims and lacks a strategic vision.
Two researchers interviewed military members and vets to see what role first-person shooters played in their lives – before, during and after their enlistments.
By appointing generals to top political posts and hiking defence spending, Donald Trump is imperiling a cherished tenet of the US constitution: civilian control of the military.
As commander-in-chief, Trump will have a major impact in upholding the U.S. military's honor and ethics. A scholar at the U.S. Naval Academy considers if he is up to the task.
A scholar of American Indian studies shares the lesser-known, true story of two men who stood up and spoke out against the murder of American Indians, and how they are celebrated as heroes today.