For the years ended December 31, 2022, 2021, and 2020, approximately 7%, 5% and 8%, respectively, of our revenue was derived from sales to customers located in foreign countries and foreign governments. We cannot assure you that we will maintain significant operations internationally or that any such operations will be successful. International business (including our participation in joint ventures and other joint business arrangements) is subject to numerous political and economic factors, legal requirements, cross-cultural considerations and other risks associated with doing business globally. These risks differ in some respects from those associated with our U.S. business and our exposure to such risks may increase if our international business continues to grow.
Our international business is subject to both U.S. and foreign laws and regulations, which may include, without limitation, laws and regulations relating to import-export controls, (such as the ITAR, EAR, and customs laws), tariffs, embargoes, technology transfer restrictions, government contracts and procurement, data privacy and protection, investment, exchange rates and controls, the FCPA and other anti-corruption laws, including the UK Bribery Act and the Canadian Corruption of Foreign Public Officials Act, Article 5 of the Israeli Penal Law of 1977, the anti-boycott provisions under the EAR, U.S. economic sanctions administered by the Office of Foreign Assets Control and other federal agencies, labor and employment, works councils and other labor groups, anti-human trafficking, taxes, environment, immunity, security restrictions and intellectual property. If we or our employees, affiliates, partners or others with whom we work fail to comply with applicable laws and regulations we may be subject to administrative, civil, commercial or criminal penalties and liabilities, including suspension or debarment from government contracts or suspension of our export privileges. Our international business also exposes us to difficulties associated with repatriating cash generated or held abroad in a tax-efficient manner and changes in tax laws. Our customers outside of the U.S. generally have the ability to terminate contracts for default based on performance. Suspension or debarment, or termination of a contract due to default, in particular, could have a material adverse effect on our reputation, our ability to compete for other contracts and our financial position, results of operations and/or cash flows. New regulations and requirements, or changes to existing ones in the various countries in which we operate can significantly increase our costs and risks of doing business internationally. Any such future violations could have a material adverse impact on our reputation, business, results of operations and financial condition.
Changes in laws, regulations, political leadership and environment, or security risks may significantly affect our ability to conduct or continue to conduct business in international markets. Our international business may be impacted by changes in U.S. and foreign national policies and priorities, and geopolitical relationships, any of which may be influenced by changes in the threat environment, political leadership, geopolitical uncertainties, world events, acts of terrorism, bilateral and multi-lateral relationships, government budgets, and economic and political factors more generally, and any of which could impact funding for programs, alter export authorizations, or delay purchasing decisions or customer payments. These changes may affect the defense spending priorities and procurement policies of foreign governments which may affect our international military sales.
The Company is subject to risks associated with a dynamic geopolitical climate, including nation states that could take action to limit our access to key material and subcomponents used in our products. Recently enacted export controls by foreign governments covering rare elements could have a material adverse impact on our business, financial condition and results of operations.
Global economic conditions and fluctuations in foreign currency exchange rates could further impact our business. For example, the tightening of credit in financial markets outside of the U.S. could adversely affect the ability of our customers and suppliers to obtain financing and could result in a decrease in or cancellation of orders for our products and services or impact the ability of our customers to make payments. In addition, the majority of our foreign costs are denominated in local currencies. Over time, an increasing portion of our contracts with paid customers outside of the United States may be denominated in local currencies. Therefore, fluctuations in the value of the U.S. dollar and foreign currencies may affect our results of operations when translated into U.S. dollars. We do not currently engage in currency-hedging activities to limit the risk of exchange rate fluctuations. However, in the future, we may use derivative instruments, such as foreign currency forward and option contracts, to hedge certain exposures to fluctuations in foreign currency exchange rates. The use of such hedging activities may not offset any or more than a portion of the adverse financial effects of unfavorable movements in foreign exchange rates over the limited time the hedges are in place. Moreover, the use of hedging instruments may introduce additional risks if we are unable to structure effective hedges with such instruments.
Our contracts with non-U.S. customers may also include terms and reflect legal requirements that create additional risks including the risk of non-payment or delayed payment by foreign customers and governments. They may include industrial cooperation agreements requiring specific in-country purchases, investments, manufacturing agreements or other operational or financial obligations, including offset obligations, and provide for significant penalties if we fail to meet such requirements. They may also require us to enter into letters of credit, performance or surety bonds, bank guarantees and/or other financial arrangements to secure our performance obligations. We also increasingly are dependent on in-country suppliers and we face risks related to their failure to perform in accordance with the contracts and applicable laws, particularly where we rely on a sole source supplier. Our ability to sell products outside the U.S. could be adversely affected if we are unable to design our products for export on a cost-effective basis or to obtain and retain all necessary export licenses and authorizations on a timely basis.
Conducting business outside of the U.S. also exposes us to the complexity and necessity of using, and disruptions involving our international dealers, distributors, sales representatives and consultants as well as the difficulties of managing a geographically dispersed organization and culturally diverse workforces, including compliance with applicable U.S. and local laws and practices, such as anti-corruption and anti-trust/competition laws. Contracts with international customers are significantly different than the contracts with our U.S. customers, and some are more complex and require different skills to manage. Our ability to conduct business outside of the U.S. also depends on our ability to attract and retain sufficient qualified personnel with the skills and/or security clearances in the markets in which we do business.
The products and services we provide internationally, including those provided by subsidiaries, subcontractors and joint ventures in which we have an interest, are sometimes in countries with unstable governments, economic or fiscal challenges, military or political conflicts and/or developing legal systems. This may increase the risk to our employees, subcontractors or other third parties, and/or increase the risk of a wide range of liabilities, as well as loss of property or damage to our products.
The occurrence and impact of these factors is difficult to predict, but one or more of them could negatively impact our business, financial condition and results of operations.
As of the date of this Quarterly Report, there have been no other material changes to the risk factors discussed under "Risk Factors" in Part 1, Item 1A of our Annual Report on Form 10-K for the year end December 31, 2022, filed with the SEC on March 28, 2023.