There is no reason for the Philippine government to seek permission from China if it intends to conduct any activity in the West Philippine Sea (WPS), including performing a medical evacuation for sick Filipino soldiers.
This was reiterated by the Philippine Coast Guard (PCG) on Saturday, June 8, after China justified its blocking of Philippine boats which were on a medical evacuation (medevac) mission in Ayungin (Second Thomas) Shoal last month.