  A mission to view the solar poles from high helio-latitudes (above
60$^\circ$) will build on the experience of Solar Orbiter as well as a long
heritage of successful solar missions and instrumentation (e.g. SOHO
\cite{SOHO}, STEREO \cite{stereo}, Hinode \cite{Hinode}, SDO \cite{SDO}), but
will focus for the first time on the solar poles, enabling scientific
investigations that cannot be done by any other mission. One of the major
mysteries of the Sun is the solar cycle. The activity cycle of the Sun drives
the structure and behaviour of the heliosphere and is, of course, the driver of
space weather. In addition, solar activity and variability provides fluctuating
input into the Earth climate models, and these same physical processes are
applicable to stellar systems hosting exoplanets. One of the main obstructions
to understanding the solar cycle, and hence all solar activity, is our current
lack of understanding of the polar regions. In this White Paper, submitted to
the European Space Agency in response to the Voyage 2050 call, we describe a
mission concept that aims to address this fundamental issue.
  In parallel, we recognise that viewing the Sun from above the polar regions
enables further scientific advantages, beyond those related to the solar cycle,
such as unique and powerful studies of coronal mass ejection processes, from a
global perspective, and studies of coronal structure and activity in polar
regions. Not only will these provide important scientific advances for
fundamental stellar physics research, they will feed into our understanding of
impacts on the Earth and other planets' space environment.
