We need to talk about war. These powerful, crucial talks come from soldiers, politicians, journalists and others who've seen the reality of war firsthand.

PTSD, isolation, depression ... These talks tackle the visible and invisible wounds left behind by violent conflict.

Not since World War II have so many people been forcibly displaced by war and persecution. Talks on why it's important to help refugees thrive, and personal stories of starting over.

These talks honor those who have fought for their country while shedding light on what coming home from war means for many whose wounds are more than skin-deep.

The pain of personal loss, war and conflict is universal. These speakers share large and small ways to remember those lost even long after they're gone.

In 1937, in one of the worst civilian casualties of the Spanish Civil War, Fascist forces bombed the village of Guernica in Northern Spain. For Pablo Picasso, the tragedy sparked a frenzied period of work in which he produced a massive anti-war mural, titled "Guernica." How can we make sense of this overwhelming image, and what makes it a master...

Civilians don't miss war. But soldiers often do. Journalist Sebastian Junger shares his experience embedded with American soldiers at Restrepo, an outpost in Afghanistan's Korengal Valley that saw heavy combat. Giving a look at the "altered state of mind" that comes with war, he shows how combat gives soldiers an intense experience of connection...

Concerned about the war Ukraine? You're not alone. Historian Yuval Noah Harari provides important context on the Russian invasion, including Ukraine's long history of resistance, the specter of nuclear war and his view of why, even if Putin wins all the military battles, he's already lost the war. (This conversation, hosted by TED global curator...

By analyzing raw data on violent incidents in the Iraq war and others, Sean Gourley and his team claim to have found a surprisingly strong mathematical relationship linking the fatality and frequency of attacks.

There are many stories that can be told about World War II, from the tragic to the inspiring. But perhaps one of the most heart-rending experiences was that of the Akune family, divided by the war against each other, and against their own identities. Wendell Oshiro tells the surprising story of this family split apart by war. [Directed by Brando...

Asteroid strikes get all the coverage, but "Medea Hypothesis" author Peter Ward argues that most of Earth's mass extinctions were caused by lowly bacteria. The culprit, a poison called hydrogen sulfide, may have an interesting application in medicine.

The author of "The Perfect Storm" and the director of the documentaries "Restrepo" and "Korengal," Sebastian Junger tells non-fiction stories with grit and emotion.

How do you reach people trapped in a reality shaped by propaganda? Exploring the dark psychology of disinformation, author and academic Peter Pomerantsev draws on lessons from a forgotten World War II operation to suggest strategies for cutting through misinformation and rebuilding trust in facts today.

"I'm not a pacifist, but in the end, war is the greatest human rights abuse and does not make the world safer," says Gabrielle Rifkind, director of the Oxford Process, an organization dedicated to ending armed conflict. She shares how inclusive negotiating strategies can prevent war from breaking out or stop an ongoing conflict — and shows what ...

On Olympus, you've been waiting for an opportunity to bring the bloody Trojan War to its conclusion. The two sides have agreed to a brief truce, and when you consult the Fates, they advise: should the peace last for 10 days, all will end soon. But if the truce is broken, there will be 10 more devastating years of war. Can you help the Greeks and...

We need journalism that moves beyond a constant focus on violence and honestly depicts the full impact of war, in and out of the trenches, says conflict journalist Bel Trew. She makes a passionate call for war reporting to be rooted in compassion and truth, sharing stories that illuminate the human toll of conflict with the hope of healing our f...

Aaron Huey's effort to photograph poverty in America led him to the Pine Ridge Indian Reservation, where the struggle of the native Lakota people -- appalling, and largely ignored -- compelled him to refocus. Five years of work later, his haunting photos intertwine with a shocking history lesson.

What caused the war in Syria? Oppression, drought and religious differences all played key roles, but Marwa Al-Sabouni suggests another reason: architecture. Speaking to us over the Internet from Homs, where for the last six years she has watched the war tear her city apart, Al-Sabouni suggests that Syria's architecture divided its once tolerant...

Bandi Mbubi would like to make sure that you are using a fair trade cell phone.

Clemantine Wamariya was six years old when the Rwandan Civil War forced her and her sister to flee their home in Kigali, leaving their parents and everything they knew behind. In this deeply personal talk, she tells the story of how she became a refugee, living in camps in seven countries over the next six years -- and how she's tried to make se...

What happens when architecture meets empathy? Through the challenges of the Russian invasion of Ukraine, architect and humanitarian Slava Balbek, who volunteers part-time on the front lines, highlights the importance of designing for dignity when building temporary housing for the people of Ukraine who have lost their homes. A stirring reminder ...

In a war, it turns out that violence isn't the biggest killer of civilians. What is? Illness, hunger, poverty -- because war destroys the institutions that keep society running, like utilities, banks, food systems and hospitals. Physician Margaret Bourdeaux proposes a bold approach to post-conflict recovery, setting priorities on what to fix first

Severine Autesserre studies the Democratic Republic of Congo, which is in the middle of the deadliest conflict since World War II; it's been called "the largest ongoing humanitarian crisis in the world.” The conflict seems hopelessly, unsolvably large. But her insight from decades of listening and engaging: The conflicts are often locally based....

Poet Suheir Hammad performs two spine-tingling spoken-word pieces: "What I Will" and "break (clustered)" -- meditations on war and peace, on women and power. Wait for the astonishing line: "Do not fear what has blown up. If you must, fear the unexploded."

Master storyteller Malcolm Gladwell tells the tale of the Norden bombsight, a groundbreaking piece of World War II technology with a deeply unexpected result.

Severine Autesserre traces civil war and endemic violence to its roots, and its resolution, in local and interpersonal conflicts.

Conflict is the biggest barrier to tackling climate change, says youth advocate Victor Ochen. Having seen firsthand how war undermined Uganda's economic and environmental potential, he explains the need to address the shared root causes of conflict and climate issues — starting by empowering African youth.

Eythor Bender of Berkeley Bionics brings onstage two amazing exoskeletons, HULC and eLEGS -- robotic add-ons that could one day allow a human to carry 200 pounds without tiring, or allow a wheelchair user to stand and walk. It's a powerful onstage demo, with implications for human potential of all kinds.

Filmmaker Deborah Scranton talks about and shows clips from her documentary The War Tapes, which puts cameras in the hands of soldiers fighting in Iraq.

"Puppets always have to try to be alive," says Adrian Kohler of the Handspring Puppet Company, a gloriously ambitious troupe of human and wooden actors. Beginning with the tale of a hyena's subtle paw, puppeteers Kohler and Basil Jones build to the story of their latest astonishment: the wonderfully life-like Joey, the War Horse, who trots (and ...