817.00/8–1248: Telegram
The Chargé in Nicaragua (Rose) to the Secretary of State
194. Embtel 192, August 10.1 Minister Foreign Office informed Embassy that Somoza again upset by report received from Costa Rica and Guatemala that Nicaragua revolutionaries continuing plans for invasion Nicaragua with full support Arévalo and Figueres. Somoza also states Arnulfo Arias2 landed at military airport Guatemala where met by Guatemalan army officer. Somoza fears supported by observations of third secret plane just returned from San José where Nicaraguan exiles told him their plans rapidly progressing with Arévalo likely to contribute military support. Figueres reported reluctant to permit launching revolutionary attempt from Costa Rica but determined support Nicaraguan revolutionaries on best possible basis as soon as plans formulated.
Minister Foreign Office and Embassy believe it likely Somoza may invade Costa Rica alleging self-defense unless foregoing reports disproved by convincing evidence of intentions of Figueres and Arévalo not to permit revolutionary plotting against Nicaraguan Government [Page 535] within their respective territories. Somoza informed Dept’s views as stated in Deptel 111 of August 93 and has again agreed to make no move unless forced to do so. Would appreciate receipt from Dept of any assurances which could be transmitted Minister Foreign Office and Somoza.