<Tr> <Th_colspan="2"> Standard Mandarin </Th> </Tr> <Tr> <Th> Hanyu Pinyin </Th> <Td> dǐfù shānkǒu </Td> </Tr> <P> Diphu Pass is a mountain pass around the area of the disputed tri-point borders of India, China, and Myanmar . Diphu Pass is also a strategic approach to eastern Arunachal Pradesh . It lies on the McMahon Line . </P> <P> In October 1960 China and Burma demarcated their border to Diphu Pass, which is 5 miles south of the watershed of the mountain ranges . However, this caused a diplomatic row with India, which expected the tri-point to be at the watershed . The dispute has become part of the ongoing border disagreement between China and India regarding Arunachal Pradesh . </P>

Which countries form tri point of the diphu mountain pass