US special envoy to South Asia, Richard Holbrooke arrived in Pakistan on Monday on a four-day visit. During his first visit to Pakistan he will hold in-depth talks with Pakistani officials, with a view to further strengthening of bilateral ties between Pakistan and the United States. Holbrooke will also call on the President and the Prime Minister and the Foreign Minister. On his arrival, Holbrooke said the purpose of his visit is to know the ground realities and understand the problems of Pakistan besides getting overall know how of the Â"very important countryÂ". He said the U.S. intends to strengthen relations with the Pakistan people. According to the spokesman of US Embassy, Richard Holbrooke will be holding meetings with Pakistani government officials besides representatives of private sector and civil society.