Just for fun...what what would be an itinernary that would encompass the most number of countries (touching the country would count) possible on a XDONE4?

Can you get a country (or multiple countries) per segment?

DFW-FRA
FRA-DUB
DUB-LHR
LHR-MAD
MAD-HEL
HEL-BKK
BKK-SIN
SIN-HKG
HKG-NRT
NRT-LAX
LAX-SAL
SAL-MIA
MIA-MEX
MEX-DFW