  I review an extension of the ADHMN construction of monopoles to M-brane
models. This extended construction gives a map from solutions to the
Basu-Harvey equation to solutions to the self-dual string equation transgressed
to loop space. Loop spaces appear in fact quite naturally in M-brane models.
This is demonstrated by translating a recently proposed M5-brane model to loop
space. Finally, I comment on some recent developments related to the loop space
approach to M-brane models.
