[LfLxfxxLxfxx]

Lithuania, Latvia and Estonia are easy - they go in alphabetical order from north to south.

[Tainnor]

Also, Estonia is closest to Finland, which makes sense since the languages are close.

[130e13a]

and it makes sense that lithuania is the bottom one (ie, closest to poland), since there used to be a polish lithuanian commonwealth

[reducesuffering]

Also Lat-via as in lateral makes me think of it in the middle.