Sure have protocol. Ass Loong & Ah Teo violated that norm during Arche Tsunami and Kay-Kiang to personally fly into Rebellion State with SAF totally without being escorted by Indonesian Military nor Civilian Officials, that is completely Wrong Protocol. You must 1st get consent and agreement before entering rescue zone. You should ask for their official coordinators or diplomats to escort & you should NOT deal directly with local leaders especially when they are rebel and you are PM & DPM.
This is very sensitive, because rebel can claim that they are Independent State HONORED by Republic Of Singapore Govt, due to your wrong act. Normally a PM & DPM (Defense Minister) will NOT go to a mission / operation like that. Too high profile. And then they were NOT being escorted by officers from Jakarta nor Indonesian Military, this is very wrong. You entered other country's backyard where it is a Rebellion Zone and deal with the rebels while your status is Rep Of Singapore PM & Minister of Defense - TOO BIG A MISTAKE. Need to resign!
This type of mission does not justify Ministers to be on the ground, assign one Colonel to be ground commander is enough.
When a SG Minister need to visit Arche in official capacity, the proper way is to goto Jakarta, and be escorted to Arche by the hosting officials. That is like entering the host country via the front door. And when you go to people's backyard, you are being shown the place by the host, you don't SUKA SUKA take RSAF helicopter with your own troops to enter Rebel Controlled - Civil War Zone such as Arche.
That WAS INVASION.
famiLEE LEEgime scholars are BRAINLESS, HOW-LIAN, YAH-YAH, AH-BENGS, playing cowboys. Proven again.
To rescue in Taiwan, 1st contact the diplomats via Taipei Trade Office @ Alexandre Rd (eqv consulate), express willingness to help. Mah Ying Jiu Govt should be happy to accept. Then coordinate the work quickly.
Taiwan Air Force is having troubles with fucked up Vietnam war era UH1H helicopter, one already crashed killing all 3 on board, the rest are grounded for this reason. There is serious shortage. SG should send Chinook Puma & Squirrel to Taiwan ASAP. This is what Taiwanese will appreciate & Beijing won't raise objection. Make a note with PRC Ambassador to SG, they would be happy to see SG help Taiwanese flood victims. I think Beijing would rather also send their own PLA to rescue their own brothers if were not for the extra sensitivity.
Beijing govt won't be so unreasonable to object SG helping Taiwanese typhoon victims, but it would be sensible gesture for SG to give Beijing a word to state the stand of the matter and clarify the objectives.