This Agreement shall be subject to ratification by both countries in accordance with their respective constitutional procedures and shall enter into force from the date of exchange of instruments of ratification.  The agreement did not prevent relations between the two countries from deteriorating until armed conflict, most recently during the Kargil war in 1999. In Operation Meghdoot in 1984, India seized the entire inhospitable Siachen Glacier region, where the border was not clearly defined in the agreement (perhaps because the area was deemed too arid to be controversial); This was considered by Pakistan as a violation of the Simla agreement. Most of the deaths that followed in the Siachen conflict were caused by natural disasters, for example. B avalanches in 2010, 2012 and 2016. The Delhi Agreement on the Repatriation of War and Civilian Internees is a tripartite agreement between the above-mentioned States, which was concluded on 28 August and was signed on 1 August 1973. The agreement was signed by Kamal Hossain, Minister of Foreign Affairs of the Government of Bangladesh, Sardar Swaran Singh, Minister of Foreign Affairs of India, and Aziz Ahmed, Minister of State for Defence and Foreign Affairs of the Government of Pakistan. T92   The agreement was the result of the determination of both countries to « put an end to the conflict and confrontation that have so far affected their relations. » It designed the measures to be taken to further normalize mutual relations and also defined the principles that should govern their future relations.    Hoping to save a deal, Bhutto called Gandhi directly.