Quite a lot of branches have appeared in its evolution: classical realism, new realism, aggressive realism, defensive realism, new classical realism, etc.

在其演变的过程中，出现了许多分支：古典现实主义、新现实主义、进攻性现实主义、防御性现实主义、新古典现实主义等。

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However, between power and security dialectical relations, power agglomerations security effectiveness has caused the opposition between offensive realism and the defensive realism.

但在权力与安全的辨证关系上，即权力积聚的安全效用问题上的根本分歧导致了进攻性现实主义与防御性现实主义的对立。

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