The European Union has been lobbying for the TCGP, which would be laid under the Caspian Sea to Azerbaijan and would not go through Russian territory.

• TCGP路线将直接穿越里海海底到亚赛拜然，该协议之所以被形容为俄罗斯对西方的胜利，乃由于欧盟一直以来均主张TCGP路线不应过俄罗斯境内。