Kargil Issue was the main cause of war between India and Pakistan in 1999 and the war was stopped by intervention of:

Explanation
Kargil's Issue was  stopped  by the intervention of the  United States of America (USA). Americans did interfere in the Kargil War and forced Pakistan to withdraw from the remaining peaks it had as of 4th July 1999. United States President Bill Clinton forced then Prime Minister of Pakistan, Nawaz Sharif to immediately pull all Pakistani troops and irregulars out from Kargil. Related Question to the Kargil War: The Kargil War was fought  between   India and Pakistan  on 1999 Kargil War fought from the  month of May to July 1999 The Kargil War   is also  known  as the  Kargil Conflict  but in  India, this conflict is known as Operation Vijay Strength :  India:  30,000 =  Pakistan:  5,000 The Kargil War was fought  i n the  Kargil  district  of  Kashmir  and elsewhere  along the Line of Control (LoC). Captain Karnal Sher Khan  Shaheed Nishan-e-Haider   was  known  as   the  hero  of  the Kargil war General Pervez Musharraf  was the  Chief of the Army Staff of the Pakistani army  during the Kargil War in 1999. while Gen VP Malik   was the  Chief of the Army Staff of the Indian army  during the Kargil war in 1999.   MUG 11-12-2022