**Contract to Trade with an Enemy**

Trading with an enemy refers to engaging in commercial activities or entering into contractual agreements with individuals or entities that are considered enemies of a particular country. During times of war or political conflicts, countries often impose trade restrictions and economic sanctions on their enemies to weaken their economic power. Given the sensitive nature of such agreements, it is important to analyze whether a contract to trade with an enemy is an immoral agreement, a valid agreement, an agreement opposed to public policy, or an enforceable agreement.

**Immorality of the Agreement**

1. Moral Considerations: Trading with an enemy could be perceived as immoral due to the potential harm it may cause to one's own country or allies. Engaging in business transactions that benefit an enemy can be seen as betraying one's national or patriotic duties.

**Invalidity of the Agreement**

1. Legal Restrictions: Governments often impose strict regulations and laws prohibiting trade with enemies during times of conflict. These regulations are put in place to safeguard national security and protect the interests of the country and its citizens. Therefore, a contract to trade with an enemy may be considered invalid as it violates these legal restrictions.

**Opposed to Public Policy**

1. National Security Concerns: Trading with an enemy can pose significant risks to national security. Such agreements may provide the enemy with resources, funds, or technology that could be used against the country or its allies. Therefore, a contract to trade with an enemy may be deemed to be against public policy due to the potential harm it may cause to the nation.

**Enforceability of the Agreement**

1. Legal Consequences: An agreement to trade with an enemy may not be enforceable due to the legal restrictions and regulations that render such contracts void or unenforceable. Courts are unlikely to enforce agreements that violate public policy or go against national security interests.

2. Lack of Recourse: In cases where a contract to trade with an enemy is deemed unenforceable, the parties involved may not have legal recourse to seek remedies or enforce their rights under the contract.

In conclusion, a contract to trade with an enemy is generally considered to be an immoral agreement, an agreement opposed to public policy, and an unenforceable agreement due to legal restrictions and national security concerns. It is important to adhere to the laws and regulations imposed by the government to ensure the stability and security of a nation.