The number of attacks in the Indian Ocean and Gulf of Aden has increased since the beginning of 2009, despite a brief respite in the summer on account of the monsoon and the difficult sailing conditions for pirates.
Alates 2009. aasta algusest on rünnakute arv India ookeanis ja Adeni lahes suurenenud, kuigi suvel mussoonide ja piraatide jaoks raskete laevatamistingimuste tõttu probleem veidi leevenes.