Assertion: Governments are very sensitive to the balance of power between their country and other countries.
Reason: Quite often, ordinary men and women are made targets of war, to break their support of the war.

Both the Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

The correct answer is: Both the Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

The assertion states that governments are very sensitive to the balance of power between their country and other countries. This statement is generally correct because governments indeed pay close attention to their geopolitical standing and the power dynamics in the international arena.
The reason given is that quite often, ordinary men and women are made targets of war to break their support of the war. While it is true that civilians can become victims in conflicts, this reason does not directly explain why governments are sensitive to the balance of power.