actually, DOT data shows that the majority of traffic on DL's FCO routes during the summer is local FCO only. Given that the demand is predominantly US point of sale, DL has the advantage in selling as well.In comparison, it is noteworthy that from many European markets, DL has the advantage in point of sale from the US while AF/KL has the advantage in point of sale from Europe. The UA/LH partnership produces very similar results. The advantage that CDG and AMS have is that they are geographically well suited to distribute traffic throughout continental Europe and in some cases the UK.DL and UA have similar average fares from Germany which is notable since the carrier with a JV partner in a country usually has a fare advantage. UA has a share, but not fair, advantage to/from Germany.The markets where DL does well in Germany decades after its hub there are markets where there is strong US market interest and where German businesses have strong business interests in key Delta markets in the US.I suspect there is also a certain strategic element to DL's additions relative to continued network optimization by US carriers post consolidation.