  We study chromo-natural inflation in the axiverse. More precisely, we
investigate natural inflation with two axions coupled with a SU(2) gauge field.
Assuming a hierarchy between the coupling constants, we find that for certain
initial conditions, conventional natural inflation commences and continues for
tens of e-foldings, and subsequently chromo-natural inflation takes over from
natural inflation. For these solutions, we expect that the predictions are in
agreement with observations on CMB scales. Moreover, since chromo-natural
inflation occurs in the latter part of the inflationary stage, chiral
primordial gravitational waves are produced in the interesting frequency range
higher than $10^{-10}$Hz, which might be detectable by future gravitational
wave observations.
