During the spring of 1999, AMRAAMs saw their main combat action during Operation Allied Force, the Kosovo bombing campaign.

During the Tito-era of communist rule in Yugoslavia, the ethnic Albanian and Serb populations of Kosovo were strongly irreconcilable with sociological studies during the Tito-era indicating that ethnic Albanian and Serb peoples in Kosovo rarely accepted each other as neighbours or friends and few held interethnic marriages.

During autumn 1999, following the Kosovo War and the NATO bombing campaign, Đukanović ( who by now firmly held power in Montenegro as Bulatović was completely squeezed out ) drafted a document called Platforma za redefiniciju odnosa Crne Gore i Srbije ( A platform for redefinition of relations within the Federal Republic of Yugoslavia ) calling for major changes in the division of governing responsibilities within FR Yugoslavia though still officially seeing Montenegro within a joint state with Serbia.

During the UN administration period, the UAE maintained almost 1, 500 peacekeeping and special operations troops in Kosovo.

During the Kosovo crisis of 1999, 600 Belgian paratroopers participated in Operation Allied Harbour, a NATO operation to protect and provide assistance to the huge number of ethnic Albanian refugees in Albania and Macedonia.

During the NATO aerial bombardment of Serbia, Arkan denied the war crime charges against him in interviews he gave to foreign reporters during the Kosovo War.

During the years 1984 / 1986 he was involved with reconsolidation of the student movement ( and general popular movement ) in Kosovo.

During the year 1996, Ahmeti was one of the main founders of the Kosovo Liberation Army, in 1998, when the war started, he was elected member of the main headquarters of the Kosovo Liberation Army.

During the 1999 NATO bombing of Yugoslavia, Friedman wrote the following in The New York Times: " Like it or not, we are at war with the Serbian nation ( the Serbs certainly think so ), and the stakes have to be very clear: Every week you ravage Kosovo is another decade we will set your country back by pulverizing you.

During this time, Serbia began to expand eastward ( toward Niš ), southward into Kosovo and northern Macedonia and northward toward Srem and Macva for the first time.

During the Great War ( 1683 – 90 ) between the Ottoman Empire and the Holy League — created with the sponsorship of the Pope and including Austria, Poland and Venice — these three powers as means of divide and conquer strategy, incited including Serbs to rebel against the Ottoman authorities and soon uprisings and terrorism spread throughout the western Balkans: from Montenegro and the Dalmatian Coast to the Danube basin and Old Serbia ( Macedonia, Raška, Kosovo and Metohija ).

During the 1990s, about 10, 000 refugees from Croatia, Bosnia and Kosovo settled in Ruma as well.

During the Nazi occupation most Jews in Albania proper were saved, although others in the Kosovo region were deported and killed.

During the late 19th century, Boletini was member of Albanian movements which sought the unification of four Ottoman vilayets ( Kosovo, Shkodra, Manastir and Ioannina ) into an independent Albanian state.

During her career with the UN Fiona had been involved in many of the world ’ s hot spots, including Bosnia and Kosovo: Fiona worked in the UN Interim Administration Mission in Kosovo to Bernard Kouchner the UN's special representative to Kosovo.

During his visit to Slovakia in March 2008, a country that together with Spain, Romania, Greece and Cyprus has not recognized the independence of Kosovo, Klaus categorically rejected the argument that Kosovo was a special case.

During his visit to Serbia in January 2011, Klaus stated that as long as he was President the Czech Republic would not appoint an ambassador to Kosovo.

During 1998 and 1999, in his capacity as special presidential envoy, Holbrooke worked to end the conflict between the armed forces of Serbia and the Kosovo Liberation Army ( KLA ), who were fighting for an independent Kosovo in the Kosovo War.

During the war, we set up schools for the teaching of psychological warfare, which included the teaching of propaganda, both black and white and the various shades of grey in between.

During the war it was in constant use by the wagon trains transporting supplies from the railhead at Grafton to the troops operating in the interior.

During the five-month lull, civil war smoldered and flickered throughout the Congo.

During the war, Congress exercised an unprecedented level of political, diplomatic, military and economic authority.

During Angola's civil war Cuban forces fought to install a Marxist-Leninist MPLA-PT government, against Western-backed UNITA and FLNA guerrillas and the South-African army.

During the war, the Azeri armed forces were also aided by Turkish military advisers, and Russian, Ukrainian, Chechen and Afghan mercenaries.

During his short reign, peace was established both at home and abroad, finances were well regulated, and the various administrative services were placed on a basis that afterwards enabled Spain to pass through the disastrous war with the United States without the threat of a revolution.

During his reign, Spain lost its last colonies in the Americas ( Cuba and Puerto Rico ) and the Philippines ; fought and, after several setbacks, won a war in Morocco ; witnessed the start of the Spanish Generation of 1927, and endured the dictatorship of Miguel Primo de Rivera.

During the civil war following the death of Eric III of Denmark in 1146, Absalon travelled abroad to study theology in Paris, while Esbern fought for Valdemar's ascension to the throne.

During the Danish civil war, Denmark had been open to coastal raids by the Wends.

During the Hellenistic and Roman periods, many of the existing buildings in the area of the Acropolis were repaired, due to damage from age, and occasionally, war.

During the war years aircraft components were produced.

During the 1st World War British prisoners of war who had been captured at Gallipoli were housed here in an empty Armenian church at the foot of the rock.

During the 1917 Russian Revolution, Nimzowitsch was in the Baltic war zone.

During the war, Nin sent her books to Frances Steloff of the Gotham Book Mart in New York for safekeeping.

During the Civil War, the Confederate army established Camp Sumter to house incoming Union prisoners of war.

During the war, Pakistan supported Bosnia while providing technical and military support to Bosnia.

During the Civil war, soldiers from different parts of the United States played baseball together, leading to a more unified national version of the sport.

During the Japanese occupation, the Dayaks played a role in guerilla warfare against the occupying forces, particularly in the Kapit Division, where headhunting was temporarily revived towards the end of the war.

During the First World War, on the Western front, the two sides had been locked in a trench war, where kill zones by overlapping fire of machine guns and barbed wire prevented either side from breaking through.

During the war, the Condor Legion undertook the bombing of Guernica which had a tremendous psychological effect on the populations of Europe.

During the First World War the German army used horses for logistics, 1. 4 million of them, in the 1939 – 45 war it used 2. 7 million horses.

During World War II, the company diverted several resources to support the war effort and relinquished its West Coast markets to conserve rail car space.

During the war, an Army base, Camp Ashby, was temporarily sited in Berkeley.

During the 1892 – 1894 war between the Congo Free State and the Swahili-Arab city-states of Nyangwe and Kasongo in Eastern Congo, there were reports of widespread cannibalization of the bodies of defeated Arab combatants by the Batetela allies of Belgian commander Francis Dhanis.