evidence: With major high-level visits, China further cements development, economic, and strategic ties with Afghanistan, Bangladesh, Maldives, Nepal, Pakistan, and Sri Lanka: 2014 was the year that the People’s Republic of China unveiled its Silk Route and Maritime Silk Route connectivity strategies for the larger Asia region, complete with maps and major bilateral visits with South Asian countries. India has long worried about Chinese "encirclement" through what some analysts have termed a "string of pearls" presence throughout South Asia; in 2014 senior official bilateral visits at the head of government/head of state level took place between China and Afghanistan, Pakistan, Sri Lanka, Maldives, and Bangladesh, plus a foreign minister-level visit to Nepal (a 2014 visit of Nepal’s prime minister to China for an expo did not involve a Beijing stop). Each of these visits resulted in substantial announcements of economic assistance especially focused on infrastructure development. China has become a major economic partner—in many cases the top trading partner and/or leading foreign investor—in much of South Asia. President Xi Jinping’s visit to India in September began with economic optimism but quickly turned to tension after Chinese troops incurred across the undemarcated border with India.