The outgoing head of the Swiss intelligence service (FIS) complained of personnel cuts in a resignation letter seen by Swiss public broadcaster RTS. +Get the most important news from Switzerland in your inbox Seven months after announcing their departures, RTS was able to consult the resignation letters of the head of the army, Thomas Süssli, and the head of the secret service, Christian Dussey. While the former briefly announced his departure, the latter provided a lengthy explanation and detailed the challenges he believes Swiss intelligence faces. + Spying game: what does the Swiss intelligence service do? In February, former defense minister Viola Amherd, who had herself resigned, announced the retirements of the heads of the army and intelligence services. The simultaneous departure of three key figures in Swiss security left many questions hanging in the air. In this context, Dussey's resignation letter, obtained by RTS after a lengthy process, provides some explanation. One ...