2. The SituationDuringthe Operatim a. The International Situation From 8 March 1948, the date on which GeneralHul~ tr~nsferred his headquartersto the USS Mt. McKinleyat PearlHarbor,up to the conclusionof,thetests,international tensioncould>in no sense,be said to have lessened. Evidencesof the RussianexpansionistpO~iC~ continuedto be publiclyreportedfrcm Finland,Czechoslovakia$ Rumania} the WesternHemisphereand in uncomfortable Germanyard .4ustria.‘Nithi.n proximityto the PanamsCanal,the seat of governmentof Columbiawas attacked~ nwolutionaryforcesin an uprisingabettedand intensified W Comm3nistelements. However,hostilemilita~ activityof sufficientstrengthand purposeto interferewith the Eniwetoktests did not materialize.The provinggroundwas constructed,the weaponsand the necessaryexperimental apparatustransportedfrom the mainlandto the test sitesuithout interference.The programof experimentation was carriedout as scheduledand with no delay or hindrance. b. The SukmarineSituation Inst~ent contacts~ naval ships of the Task Force and visual sightingsby observerson shoreand in patrolaircraftwere frequentlyreportedto J-2 duringthe courseof the operation. A summary of these incidentsis presentedbelow: 13 SectionII