に先立って => before; prior to ~ N2
に[先立「さきだ」]って/に[先立「さきだ」]ち/に[先立「さきだ」]つ => Before A occurs/takes place N2
Time, Situation
に先駆けて => prior to; to be the first (pioneer); being ahead of ~ N1
お => Prefix N5
Respectful, humble
...どおし => Throughout N3
Continuous
とおり => Several ways N4
Means and methods
おくに => Which country N5
Doubt
...もらおう => Please... N4
Benefit
なおす => to redo N3
Modify
ておられる => ( Honorifics) N3
Respectful, humble
お…です => Have..., are..., will... N3
Respectful, humble
おかげだ => thanks to... N3
Cause, reason