The glacier is located in the disputed Kashmir region and is claimed by India and Pakistan. In spite of the severe climate, the word `Siachen` ironically means `the place of wild roses`, a reference some people attribute to the abundance of Himalayan wildflowers found in the valleys below the glacier, but specifically refers to the thorny wild plants which grow on the rocky outcrops. The glacier is also the highest battleground on Earth, where India and Pakistan have fought intermittently since 1984. Both countries maintain permanent military personnel on the glacier at a height of over 7,000 metres. The site is a prime example of mountain warfare. The glacier`s melting waters are the main source of the Nubra River, which falls into the Shyok River. The Shyok in turn joins the Indus River, crucial to both India and Pakistan.