The Prophet has clearly laid down the principle regarding internal politics of a country that once a government is established, it is wrong to engage in the politics of opposition. Instead, one must engage in the politics of construction in other fields while avoiding political confrontation. The Prophet affirms another principle for relations with other countries. He declared aggressive war against other countries or states unlawful. No Muslim has the right to attack another country and invade it. However if another country attacks a Muslim country, the Muslim government can fight in self-defence. Islam permits only defensive war. Even in defensive war it should be understood that one should not rush to fight as soon as one hears news of war. A Muslim state should first resort to peaceful negotiation and try to understand the motives for the aggression. These methods aim to avoid or to minimize war. Should all such efforts fail and the other country attacks, then only a limited defensive war is permissible, and nothing more than that. A limited armed action is allowed only to put an end to aggression. This again has conditions. A Muslim force can only fight with the members of the attacking army or combatants, and not non-combatants.