Alliances are thought to be able to protect a nation's security and sovereignty, which is why they push a nation into war.
Defensive alliances have a successful track record of discouraging revanchist powers from adopting violence as a means of settling disputes or betting on a swift military thrust to attain a relatively risk-free advantage. Of course, this does not happen in every battle.
Alliances are seen to be able to safeguard a country's security and sovereignty. When there is no profit from the alliance, it can be destructive but it can also be advantageous. Each alliance has a distinct goal and significance.
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