  The ongoing Russia-Ukraine war has been extensively discussed on social
media. One commonly observed problem in such discussions is the emergence of
echo chambers, where users are rarely exposed to opinions outside their
worldview. Prior literature on this topic has assumed that such users hold a
single consistent view. However, recent work has revealed that complex topics
(such as the war) often trigger bipartisanship among certain people. With this
in mind, we study the presence of echo chambers on Twitter related to the
Russo-Ukrainian war. We measure their presence and identify an important subset
of bipartisan users who vary their opinions during the invasion. We explore the
role they play in the communications graph and identify features that
distinguish them from remaining users. We conclude by discussing their
importance and how they can improve the quality of discourse surrounding the
war.
