A Pentagon report submitted to the US Congress has flagged China's claim over Arunachal Pradesh as part of its stated "core interests". The document states that China is not open to negotiation or compromise on these interests.
The report notes that China's leadership has expanded the scope of its "core interests" to include Taiwan, sovereignty claims and maritime disputes in the South China Sea, the Senkaku Islands, and the northeastern Indian state of Arunachal Pradesh.