"Security concerns" are not enough to judge the situation. Mobsters surround themselves of armed guards as much as the investigators trying to capture them. Nations that start wars need to protect themselves from counter-attacks and retaliation. Israel is in blatant violation of international law and handsomely profiting from it: 10% of its population lives on land that doesn't belong to the state and that by international agreements has to be returned to its legitimate owners.

Every country faces real security concerns when they're trying to settle land somebody already lives on.

Nazi Germany was one of the most militaristic states in the world as well, and they too had real security concerns for the same reasons