Board Thread:Naruto Discussions/@comment-45605011-20200630120656/@comment-37007973-20200630234552

Yes the one in episode 339 from 13:30 to 15:40 is the 4th bgm from the 2nd Naruto Shippūden Original Soundtrack called Colourful Mist (彩霞, Saika) and the one in episode 340 from 1:30 to 2:55 has never been released, you can find it on YouTube by searching for: "Naruto Shippuuden Unreleased Soundtrack - The Allied Shinobi Forces (BETTER)"