Skip to content
Law

What to include in a contract regarding war?

In the current situation, a large number of manufacturers and suppliers may, due to unforeseeable circumstances such as war or a pandemic, find themselves unable to fulfil their contracts with customers properly and, above all, on time.

Books titled "Advokáti radí, jak ušetřit miliony" about valuable contract tips.

Key takeaways

Force majeure may protect you from liability for damages. This clause exempts you from the obligation to compensate for damages in the event of a failure to perform contractual obligations, if such failure is due to an extraordinary and unforeseeable external event, such as an armed conflict.
An armed conflict constitutes force majeure only if it is unforeseeable. If you conclude a contract during an ongoing conflict, it is presumed that you are aware of the risks, and the conflict cannot be invoked as a force majeure event.
Internal issues do not constitute force majeure. Events of a personal or economic nature, such as an employee strike or foreseeable adverse weather, cannot be considered force majeure, as they are internal circumstances.
You must endeavor to overcome the obstacle. Even in the event of force majeure, you must make every effort to remove the contractual impediment, for example, by changing the transport route for goods or securing replacement workers.
ARROWS law firm

War as a Force Majeure Clause?

Force majeure (vis maior) is a circumstance that can release you from liability for damages for failure to perform contractual obligations.

For example, force majeure can suspend the running of the statute of limitations (Section 651 of the Czech Civil Code (hereinafter the "CC")) or, if you are the client, it gives you the right to carry out an additional inspection of goods (Section 2626(2) of the CC). For the contracting parties, including a force majeure clause is advisable as it increases legal protection and strengthens legal certainty.

So what is force majeure and how can you use it to your advantage in a contract? 

To qualify as force majeure, an event must be external, which cannot be averted even with all due effort, given its extraordinary and unforeseeable nature. A typical example of force majeure is a pandemic or a war.

Conversely, events of a personal or economic nature, which are internal circumstances, cannot be considered force majeure. For example, an employee strike or predictable adverse weather, such as snow in the winter months, is not considered force majeure.

For a war to be unforeseeable, it must arise unexpectedly. Unforeseeability must be assessed in relation to the time the contract was concluded. Therefore, if you are entering into a contract in the current situation where a war is ongoing, it is assumed that you are aware of the increased risks.

In the opposite case, where the conflict has unexpectedly affected a contract concluded before the war, we can speak of the application of the force majeure doctrine. However, the contracting party must make every effort to remove the contractual obstacle.

The surmountability of the obstacle must be assessed objectively – meaning it must be surmountable for any person acting properly who would be in a similar situation. The law further presumes higher standards of diligence for the professional performance of an expert. Therefore, if you conclude a contract as a member of a certain profession, you are indicating that you are capable of acting with the knowledge and diligence associated with such a profession.

As an example of averting an obstacle, we can mention a logistics company that, when transporting goods, must make an effort to change the route to bypass the conflict-affected territory, especially if the state of war has been ongoing for a longer period.

Another example is a construction company in default that has employment contracts with citizens of a state affected by war. If the company defaults on its obligation due to the departure of workers responding to the state of war, we can again speak of the application of the force majeure doctrine. However, the construction company must make every effort to avert the impact, for example, by trying to find replacement workers to ensure timely performance.

However, if the impacts cannot be averted even with all due effort, the contracting party is released from liability for damages.

DO YOU NEED LEGAL HELP?

Get in touch — we're happy to help.

ARROWS law firm

So how do you set up a contract to your best advantage?

Given the invasion of Ukraine by the armed forces of the Russian Federation and general contractual prudence, it is advisable to agree with the other party on the risks that can be foreseen. For example, it is advisable to agree on the amount and conditions for the application of contractual penalties in the event of a force majeure obstacle, as force majeure generally does not apply to them.

At the same time, we recommend addressing situations where only partial performance of the obligation is possible. As an example, we can take a complex construction supply of goods that has two components – a delivery of concrete from the Czech Republic and a delivery of iron from Ukraine. Will the party be obliged to perform the obligation at least for the part that can be fulfilled? Or will it be released from performance for the duration of the force majeure obstacle?

We also recommend arranging for alternative performance, or defining the amount of costs that the parties consider reasonable to overcome the consequences. It is appropriate to formulate the risks that each party will bear as precisely as possible. Who will be responsible for extraordinary costs incurred? To what extent should damages be limited?

It is also possible to set up the contract so that it is automatically terminated in the event of a force majeure circumstance. The cases that the parties associate with the consequences of force majeure can also be exhaustively limited – it is even possible to completely exclude the consequences of force majeure by contract.

Frequently asked questions about applying force majeure during a war

1. Is an ongoing war automatically considered force majeure for newly concluded contracts?

  • No. Unforeseeability is always assessed at the time the contract is concluded. If you are entering into a contract at a time when a war is already ongoing, it is assumed that you are aware of the risks and are accounting for them. Force majeure is usually only a conflict that arises unexpectedly or its completely unforeseeable sudden escalation.

2. Does the statutory exemption due to force majeure also apply to contractual penalties?

  • Not by default. Under the law, force majeure releases you from the obligation to pay damages, but it does not automatically cancel contractual penalties agreed upon in the contract. If you want force majeure to also cover contractual penalties, you must explicitly stipulate this in the contract.

3. What effort must a contracting party make to be able to invoke force majeure?

  1. The affected party must make all objectively possible efforts to avert or overcome the obstacle (e.g., change the logistics route of transport or actively seek replacement workers for those who have gone to war). If the obstacle could have been overcome by standard professional practice, force majeure cannot be invoked.

ARROWS law firm

Risks and Sanctions

How ARROWS can help (consultation@arws.cz)

Ineffectiveness of force majeure during an ongoing conflict

We will draft a tailored force majeure clause that explicitly covers the specific impacts of the ongoing conflict and protects you from damages.

Neglecting the duty to overcome an obstacle

We will set clear limits for reasonable costs, alternative performance, and limitation of damages directly in the contract, thereby preventing unenforceable claims.

Obligation to pay contractual penalties even when affected by war

We will adjust contractual penalties so that their application in the event of force majeure is explicitly excluded or capped in terms of time and finances.

Financial losses from rising prices, inflation, and exchange rates

We add protective price, inflation, fuel, and currency clauses to contracts, which allow for flexible adjustment of the price of the work according to real market developments.

ARROWS law firm

In these uncertain times, we also recommend including other types of clauses in contracts

A currency clause will help protect you against high currency instability, where it is very difficult to predict the development of exchange rates. A price clause will allow you, as the seller, to increase the purchase price if there is an unexpected increase in the cost of inputs.

Through a fuel clause, it is possible to agree that if the price of fuel rises, the price of the entire transport will increase proportionally. Furthermore, it is possible, for example in the construction industry, to agree on an inflation clause, which adjusts the price of construction work in relation to the development of inflation.

Given the freedom of contract that permeates private law, the form of a contractual clause can be shaped in various ways and, with the help of our attorneys from the ARROWS law firm, can be best adapted to the specific contractual relationship according to the client's needs. 

Frequently asked questions about setting up contract clauses in uncertain times

1. What exactly defines the doctrine of “force majeure” (vis maior) in Czech law?

  • It is an extraordinary, unforeseeable, and unavoidable external event that the contracting party could not influence or prevent, even with all due effort. Typical examples include natural disasters, epidemics, or wars.

2. Can the effects of force majeure be completely excluded or precisely limited in a contract?

  • Yes. Due to freedom of contract, you can completely exclude the effects of force majeure in a contract, exhaustively define force majeure events (e.g., exclude strikes or certain types of conflicts), or agree on a precise financial limit for damages and additional costs.

3. What happens to a contract if only part of the obligation can be fulfilled due to war?

  • It depends on the wording of the contract. If the contract does not address partial performance, uncertainty may arise. We recommend including a provision in the contract that specifies whether the party is obliged to deliver at least the available part of the performance, or whether the performance is postponed as a whole for the duration of the obstacle.

4. What is the purpose of price, inflation, and fuel clauses?

  • These clauses protect the supplier from an unforeseeable increase in input costs. They allow for the flexible adjustment (increase) of the final price of the work or transport depending on the rise in prices of raw materials, fuel, or the inflation rate, without breaching the contract.

5. How does a currency clause help in international trade affected by a war crisis?

  • A currency clause protects the contracting parties from fluctuations in the exchange rates of national currencies. If a significant weakening or strengthening of a currency occurs as a result of crisis events, the clause adjusts the financial performance so that neither party suffers a disproportionate loss.

6. What should I do if the other party refuses to perform the contract by citing the war, but I disagree?

It is necessary to check the date the contract was concluded, the objective unavoidability of the obstacle, and whether the other party has demonstrably made every effort to provide alternative performance. If an alternative solution existed (e.g., another supplier or route), the invocation of force majeure is unjustified, and you can claim damages.

ARROWS law firm

Read also:

CORONAVIRUS AND CONTRACTS 2021 (BREACH, CONSEQUENCES, WITHDRAWAL)

OPTIONS FOR EMPLOYING REFUGEES FROM UKRAINE IN 2022

Are you about to conclude a contract for work? We have prepared a webinar for you where you will learn all the key information for drafting and managing this type of contract.

Why choose us?

Our services are used by companies of all sizes because we provide them with fast and effective solutions in the area of contractual documentation. For example:

  • Tailor-made contracts without unnecessary delays: We will prepare commercial contracts, supplier agreements, employment contracts, and other documents for you that meet your needs and minimize risks.

  • Clear and understandable terms: We design contracts to be practical, clear, and easy to use in day-to-day operations.

  • Protection against legal complications: We help clients prevent ambiguities, disputes, and unfavorable conditions.


Disclaimer:

The information contained in this article is for general informational purposes only and serves as a basic guide to the issue as of 2026. Although we strive for maximum accuracy, laws and their interpretation evolve over time. We are ARROWS Law Firm, a member of the Czech Bar Association (our supervisory authority), and for the maximum security of our clients, we are insured for professional liability with a limit of CZK 350,000,000. To verify the current wording of the regulations and their application to your specific situation, it is necessary to contact ARROWS Law Firm directly (consultation@arws.cz). We are not liable for any damages arising from the independent use of the information in this article without prior individual legal consultation.