from more than 800 serving officials in the us and europe denouncing their governments policy on israel and the war in gaza. in a signed a statement, they warn that their own governments policies on the israel gaza war could amount to grave violations of international law . one signatory to the statement a us government official with more than 25 years national security experience told the bbc those who understand the region were not being listened to. the statement warns that their administrations risk being complicit in one of the worst human catastrophes of this century, but that their expert advice has been sidelined. it says israel has shown no boundaries in its military operations in gaza, which has resulted in tens of thousands of preventable civilian deaths. it also calls for the us and european governments to stop asserting to the public that there is a strategic and defensible rationale behind the israeli operation . the statement is signed by civil ser