KEY POINTS
  • "The region is arming at an alarming rate. Countries are playing with each other in terms of action-reaction, where when one country increases [purchases], another country [also] increases, procuring more weapons," Nan Tian, a senior researcher in military expenditure at SIPRI, told CNBC.
  • That comes as worldwide military spending surpassed $2 trillion for the first time ever in 2021, he added.
  • Tian said China's increased military spending has created a "greater threat perception" in the neighborhood.

The South China Sea region faces a heightened risk of conflict as it arms itself at an "alarming rate," an expert from the Stockholm International Peace Research Institute told CNBC on Monday.

It comes as worldwide military spending surpassed $2 trillion for the first time ever in 2021, he added.