▁ancest ral ▁home . ▁ ▁References ▁ ▁Category : G em st ones <0x0A> </s> ▁Sher win ▁Pe ak ▁may ▁refer ▁to ▁ ▁Sher win ▁Pe ak ▁( Cal iforn ia ), ▁near ▁M amm oth , ▁California ▁ ▁A ▁peak ▁in ▁the ▁Queen ▁Elizabeth ▁Range ▁( Ant arct ica ) <0x0A> </s> ▁Plan ▁Kath le en , ▁sometimes ▁referred ▁to ▁as ▁Art us ▁Plan , ▁was ▁a ▁military ▁plan ▁for ▁the ▁invasion ▁of ▁Northern ▁Ireland ▁by ▁Germ ans , ▁san ction ed ▁by ▁Stephen ▁Hay es , ▁Act ing ▁Irish ▁Republican ▁Army ▁( I RA ) ▁Chief ▁of ▁Staff , ▁in ▁ 1 9 4 0 . ▁Plan ▁Kath le en ▁is ▁frequently ▁confused ▁with ▁Operation ▁Green , ▁the ▁German ▁military ▁plan ▁to ▁in va de ▁Ireland ▁drawn ▁up ▁in ▁ 1 9 4 0 . ▁ ▁Im mediate ▁context ▁Kath le en ▁took ▁place ▁in ▁the ▁context ▁of ▁then ▁I RA ▁Chief ▁of ▁Staff , ▁Se án ▁Russell , ▁being ▁in communic ado ▁in ▁the ▁United ▁States ▁as ▁he ▁purs ued ▁the ▁propag anda ▁arm ▁of ▁the ▁S - Plan . ▁Russell ▁was ▁attempting ▁to ▁ar range ▁passage ▁to ▁Berlin ▁( see ▁Operation ▁D ove ), ▁having ▁left ▁Stephen ▁Hay es ▁as ▁Act ing ▁Chief ▁of ▁Staff ▁back ▁in ▁Ireland . ▁ ▁While ▁Russell ' s ▁movements ▁were ▁unknown ▁to ▁Hay es , ▁he ▁san ction ed ▁the ▁drawing ▁up ▁an ▁invasion ▁plan ▁to ▁end ▁partition ▁and ▁reun ify ▁the ▁island ▁of ▁Ireland . ▁The ▁plan ▁was ▁written ▁by ▁an ▁I