Monday, June 1, 1998 Published at 04:17 GMT 05:17 UK
Asia's nuclear coming of age
Source: Jane's Defence Weekly, Institute of Peace Studies, International Institute of Strategic Studies.
India's decision to conduct a series of nuclear weapons tests led to international sanctions and fears of a new arms race in the region.
Pakistan then carried out its own tests, saying it had been forced to do so in the interests of national security.
This special report offers a guide to news stories on the subject, and the issues behind them.
India carries out tests
May 11: The news report confirming that India had conducted its first nuclear tests since 1974.
May 13: India conducts a second round in its planned series of five tests.
May 16: The Indian Prime Minister, Atal Behari Vajpayee, admits his country's nuclear weapons status.
May 17: India's nuclear scientists disclose details of the latest nuclear tests and the new weapons they are working on.
May 19: Indian authorities are to investigate allegations of radiation sickness among villagers living near the nuclear test site.
May 21: India announces a moratorium on further nuclear testing, saying the country's weapons are only for self defence.
May 27: The Indian Prime Minister says India is ready to discuss a 'no-first-use' agreement on nuclear weapons.
May 31: The Indian Prime Minister calls for talks leading to a convention on nuclear weapons.
May 16: As reports say that Pakistan's nuclear programme may be more advanced than India's, the Pakistani foreign minister warns that his country will almost certainly retaliate.
May 28: Pakistan warns India of 'swift and massive retaliation' if India attacks its nuclear installations - and correspondents say a test looks imminent.
May 28: Pakistan explodes five underground nuclear devices.
May 28: While Pakistan has been widely condemned abroad, the people at home are celebrating.
May 29: Unnamed US officials believe Pakistan may test again.
May 30: Pakistan carries out a further nuclear test.
May 30: Pakistan says it is prepared to hold talks with other countries to find ways of promoting nuclear disarmament.
May 31:Pakistan's chief scientist talks of arming nuclear missiles.
May 14: China joins international condemnation of the tests, accusing India of trying to control the region's politics.
May 18: The United Nations Secretary-General, Kofi Annan, urges Pakistan not to test nuclear warheads and appeals to India to sign two nuclear weapons treaties.
May 26: The World Bank delays a decision on whether to approve more than $860m in loans to India, following the country's two series of nuclear tests earlier this month.
May 28: The United States and Japan both announce sanctions against Pakistan, and other countries and international bodies condemn Pakistan's action.
May 28: The Indian prime minister says Pakistan's nuclear tests have vindicated India's decision to conduct its tests.
May 30: A further nuclear test by Pakistan is followed by international criticism.
May 31: Amid international criticism of Pakistan, the United Nations Security Council issues a statement deploring the latest explosions.
The response from the world's media
May 13: Indian public opinion swings behind the government and its decision to test nuclear weapons.
May 15: Mixed feelings in the Pakistani media on the question of whether the country should follow India and conduct its own nuclear tests.
May 29: A press review of world reaction to Pakistan's nuclear tests
We asked you whether India and Pakistan should have carried out nuclear tests.