Decrypting the Posts

As hinted by the post mentioning "local coordinates", scientists set out to identify the location indicated by each image. This involved reverse image searching (or in one case identifying a filming location), to locate what was being referenced by each of the 26 locations. A further hint was gathered from the name Internet Adapted Telemetry Acquired which began with the letters IATA indicating to find the IATA airport code at each of the locations found.

In tweet order, the IATA codes were found to be:

Tweet Order IATA Codes
BEE
HCA
QLD
CGE
DAK
FOA
GRT
AMS
EFD
KEL
LNV
YEM
MTE
ONO
PER
REA
IES
ZSE
SXY
JSO
XSI
TEA
NIF
URN
VCD
WIT

Review of the codes reveals that they each start with a unique letter from A-Z indicating order. Rearranging in order (and flipping vertically for readability gives a final message.

The Final Message reads

MEGAFORCE SENTINEL EXERCISES SEEK DATA SOLVE FOR DAY AND TIME

This being a hint the the exact day and time for the beginning of the Megaforce Sentinel Exercises.