Key events since NATO began military action against Yugoslavia:

March 24 - NATO launches air war against Yugoslav military targets.

March 27 - Ethnic Albanians fleeing or expelled from Kosovo begin to pour into Albania and Macedonia.

April 1 - Yugoslav television shows three bruised U.S. soldiers captured near Macedonia-Kosovo border. They are freed on May 2 after visit by U.S. civil rights leader Jesse Jackson.

April 3 - NATO missiles destroy Yugoslav ministries in first strikes on central Belgrade.

April 14 - NATO air strikes hit ethnic Albanian refugees in Kosovo road convoys. Yugoslavia reports 64 dead. NATO admits five days later it may have made mistakes.

April 21 - NATO blasts headquarters of President Slobodan Milosevic's Socialist Party of Serbia and his private residence in Belgrade.

April 23 - NATO attacks Serbian state television building in central Belgrade, killing at least 10 people.

May 2 - NATO graphite bombs short-circuit Yugoslav power grid.

May 7 - NATO mistakenly bombs Chinese embassy in Belgrade, killing three Chinese journalists.

May 10 - Yugoslavia says it is withdrawing some forces from Kosovo. Major Western powers dismiss the statement.

May 13 - NATO bombs Kosovo village of Korisa, killing 87 ethnic Albanian civilians.

May 15 - NATO admits Korisa bombing but rejects blame for civilian deaths, saying target had been spotted as a military camp.

May 17 - Anti-war protests start in Serbian towns of Aleksandrovac and Krusevac.

May 22 - NATO bombs army barracks at Kosare, unaware it was captured by Kosovo Liberation Army guerrillas a month earlier.

May 23 - NATO begins intensive bombing of Yugoslav electricity grid, beginning major disruption of power and water supplies.

May 24 - Head of U.N. fact-finding mission, Sergio Vieira de Mello, says he saw "revolting" signs of ethnic cleansing in Kosovo.

May 25 - NATO allies agree to increase to about 48,000 the ground force being assembled for eventual use in Kosovo.

May 27 - U.N. war crimes tribunal indicts Milosevic and four other leaders for crimes against humanity.

May 28 - Official Yugoslav news agency Tanjug says Yugoslavia accepts general principles agreed by Group of Eight powers as a basis for peace in Kosovo.

May 29 - Two Australian aid workers and Yugoslav colleague convicted in Belgrade of spying and jailed.

May 30 - NATO aircraft bomb crowded bridge in Varvarin, central Serbia, killing nine people and injuring at least 17.

June 1 - Yugoslavia tells Germany it has accepted Group of Eight principles for peace and demands end to NATO bombing.

June 3 - Yugoslavia accepts peace plan brought to Belgrade by European Union and Russian envoys. - NATO says over 5,000 members of Yugoslav security forces have been killed and more than 10,000 wounded in NATO raids.

June 6 - NATO Secretary-General Javier Solana says it will be hard to help rebuild Yugoslavia while Milosevic remains in power.

June 7 - NATO and Yugoslav commanders fail to agree terms of pullout from Kosovo and suspend talks. NATO intensifies bombing. - G8 foreign ministers in Bonn attempt to finalize U.N. resolution on enforcing Kosovo peace deal. - Yugoslavia insists it wants a U.N. Security Council resolution before any foreign troops enter Kosovo.

June 8 - Russia's defense minister says his ministry has drawn up proposals for sending up to 10,000 troops to a peacekeeping force in Kosovo, but they would not be under NATO command. - The Kosovo Liberation Army promises the United States its guerrillas will let Serb forces withdraw from the province of Kosovo without attacking them. - The West and Russia reach a landmark agreement on a draft U.N. resolution for peace at G8 talks in Cologne. - NATO says B-52 bomber caught two Yugoslav Army battalions in open near Kosovo-Albanian border, possibly killing hundreds on June 7.

June 9 - U.N. war crimes prosecutor Louise Arbour meets group of international lawyers to hear their request that she investigate alleged atrocities by NATO in Kosovo conflict. - NATO says its spearhead units on four hours notice to move into Kosovo once Serb forces pull out. - NATO and Yugoslavia sign Kosovo withdrawal accord. - Yugoslav deputy foreign minister says military pullout from Kosovo to start Thursday. - President Clinton says he is "very pleased" Yugoslavia accepted peace plan but says allies will closely watch Serb forces to ensure they comply with terms of the deal.

June 10 - NATO and officials in Belgrade say withdrawal of Serb forces from Kosovo has begun. - Serbian forces continue to shell villages in northern Albania overnight, the OSCE says. - Russia's State Duma lower house of parliament urges President Yeltsin to sack his Balkans envoy Viktor Chernomyrdin. - Russia and the U.S. face tough talks over Moscow's role in Kosovo force after U.S Deputy Secretary of State Strobe Talbott rules out a separate sector for the Russians. - A senior KLA official says it will stay put in its strongholds in Kosovo until NATO troops arrive rather than fan out to fill the vacuum left by retreating Serb forces. - NATO's Solana says he has ordered suspension of the bombing campaign after Yugoslavia started to pull its forces out of Kosovo. - Milosevic in a TV broadcast calls for unity to rebuild the country and says international forces coming into Kosovo will serve peace. - Clinton says Kosovo now has a "moment of hope," urges Serb troops to withdraw rapidly and peacefully to avoid resumption of air strikes.

June 11 - Russia's negotiator at military talks with NATO says Moscow will arrange directly with Belgrade to run a sector of its own in Kosovo if NATO refuses to grant it. - President Boris Yeltsin says Russia's ties with NATO are still frozen despite the suspension of bombing but he does not rule out an improvement. - NATO says 4,000 Yugoslav military personnel have so far left Kosovo. - The self-styled prime minister of a Kosovo Albanian government-in-exile, Bujar Bukoshi, says peace in Kosovo will not be secure until Yugoslavia surrenders executive power in the region. - First group of Russian troops move into Yugoslavia from Bosnia, U.S. says it is surprised at the move but has assurances from Moscow the troops will not enter Kosovo before NATO forces. - The OSCE says departing Serb forces apparently set fire to Kosovo village of Gorozhup, Albanian villages are shelled again.

June 12 - Russian troop convoy enters Pristina, Russian Foreign Minister Igor Ivanov says deployment was an "unfortunate mistake" and troops have been ordered to leave; hours later they still remain and the Interfax news agency says Russia will boost its presence soon. - U.S. and NATO, surprised by the Russian troop movement, accepts Russian explanation, says difficult talks on Russian role in KFOR peacekeeping force will continue. - First NATO troops -- British Gurkhas and paratroopers -- move into Kosovo from Macedonia by helicopter at dawn to take control from withdrawing Serb forces; they reach the capital Pristina in the afternoon. - A British C-130 military transport plane crashes overnight after a hitting a building during takeoff.