With India and Pakistan both holding arsenals of nuclear weapons, and the two nations locked in seemingly endless hostility over disputed Kashmir, a team of U.S. experts warns that even a limited nuclear war between them could cause a near-global threat to the Earth's atmosphere and the human life it protects.

Apart from the human devastation, a small-scale nuclear war between India and Pakistan would destroy much of the ozone layer, leaving the DNA of humans and other organisms at risk of damage from the Sun's rays, say researchers.

Israel has drawn up secret plans to destroy Iran’s uranium enrichment facilities with tactical nuclear weapons. Two Israeli air force squadrons are training to blow up an Iranian facility using low-yield nuclear “bunker-busters”, according to several Israeli military sources.

Even a small nuclear conflict could have catastrophic environmental and societal consequences, extending the death toll far beyond the number of people killed directly by bombs, according to the first comprehensive climatic analysis of a regional nuclear war.

Jeffrey Lewis defuses the recent "threat" by Chinese General Zhu Chenghu to attack the U.S. with nuclear weapons if the U.S. interferes in Taiwan by examining its relevance given China's long-standing committment to "No First-Use."

China is prepared to use nuclear weapons against the US if it is attacked by Washington during a confrontation over Taiwan, according to a senior Chinese military official.

North Korea's leader, Kim Jong Il, has warned that nuclear war could break out if the United States attacks his country's nuclear program.

Walter Russell Mead worries that the world has entered a new "Age of the Apocalypse" where the risk of a nuclear exchange or an apocalyptic terrorist attack will be ever present.

The authors look at three situations in which a large-scale conventional conflict between India and Pakistan could inadvertently escalate to nuclear warfare because of the nations' asymmetries in doctrine and military capabilities.

Israel?s firing off a nuclear weapon in retaliation for Iraqi President Saddam Hussein?s attacking it with a chemical or biological weapon looms as the No. 1 nightmare if the United States goes to war against Iraq, according to a wide spectrum of government and private arms specialists pondering the ?what-if? scenarios.