  The decays $K \to \pi l^{+} l^{-}$, $K \to \pi \gamma \gamma $ and $K \to \pi
\nu {\bar \nu}$ are investigated using the higher order terms of the chiral
perturbation theory. The counterterms induced by strong, weak and
electromagnetic interactions are determined assuming the resonance exchange.
(Talk presented at the Workshop on K-Physics, Orsay, France, 30 May - 4 June,
1996)
