13. Commitments and Contingencies Ship Construction Contracts For the Norwegian Brand, Project Leonardo will introduce an additional six ships, each approximately 140,000 Gross Tons with approximately 3,300 Berths, with expected delivery dates from 2022 through 2027, subject to certain conditions. The effectiveness of the contracts to construct two of the ships, expected to be delivered in 2026 and 2027, is contingent upon certain Italian government approvals. For the Regent brand, we have an Explorer Class Ship, Seven Seas Splendor, with approximately 55,000 Gross Tons and 750 Berths, which was delivered in January 2020. We refer you to Note 18  Subsequent Events for additional information. We have one additional order for an Explorer Class Ship to be delivered in 2023. For the Oceania Cruises brand, we have orders for two Allura Class Ships to be delivered in 2022 and 2025, one of which is contingent upon certain Italian government approvals. Each of the Allura Class Ships will be approximately 67,000 Gross Tons and 1,200 Berths. The combined contract prices of the 10 ships on order for delivery, including Seven Seas Splendor, which was delivered in January 2020, was approximately 7.4 billion, or $8.3 billion based on the euro/U.S. dollar exchange rate as of December 31, 2019. We have obtained export credit financing for the ships on order which is expected to fund approximately 80% of each contract price, subject to certain conditions. We do not anticipate any contractual breaches or cancellation to occur. However, if any such events were to occur, it could result in, among other things, the forfeiture of prior deposits or payments made by us and potential claims and impairment losses which may materially impact our business, financial condition and results of operations. As of December 31, 2019, minimum annual payments for non-cancelable ship construction contracts with initial or remaining terms in excess of one year were as follows (in thousands):      Year Amount 2020  $ 556,784 2021  279,254 2022  1,595,262 2023  1,439,097 2024  888,790 Thereafter  829,303 Total minimum annual payments  $ 5,588,490  Port Facility Commitments As of December 31, 2019, future commitments to pay for usage of certain port facilities were as follows (in thousands):      Year Amount 2020  $ 79,418 2021  67,671 2022  68,049 2023  70,100 2024  75,112 Thereafter  1,726,575 Total port facility future commitments  $ 2,086,925  Other Commitments The FMC requires evidence of financial responsibility for those offering transportation on passenger ships operating out of U.S. ports to indemnify passengers in the event of non-performance of the transportation. Accordingly, each of our three brands are required to maintain a $32.0 million third-party performance guarantee in respect of liabilities for non-performance of transportation and other obligations to passengers. The guarantee requirements are subject to additional consumer price index-based adjustments. Also, our brands have a legal requirement to maintain security guarantees based on cruise business originated from the U.K., and we are required to establish financial responsibility by certain jurisdictions to meet liability in the event of non-performance of our obligations to passengers from those jurisdictions. As of December 31, 2019, approximately British Pound Sterling 41.5 million was in place as security guarantees as well as a consumer protection policy covering up to 110.0 million. From time to time, various other regulatory and legislative changes have been or may in the future be proposed that may have an effect on our operations in the U.S. and the cruise industry in general. Litigation Helms-Burton Act On August 27, 2019, two lawsuits were filed against Norwegian Cruise Line Holdings Ltd. in the United States District Court for the Southern District of Florida under Title III of the Cuban Liberty and Solidarity (Libertad) Act of 1996, also known as the Helms-Burton Act. The complaint filed by Havana Docks Corporation alleges it holds an interest in the Havana Cruise Port Terminal and the complaint filed by Javier Garcia-Bengochea alleges that he holds an interest in the Port of Santiago, Cuba, both of which were expropriated by the Cuban Government. The complaints further allege that the Company trafficked in those properties by embarking and disembarking passengers at these facilities. The plaintiffs seek all available statutory remedies, including the value of the expropriated property, plus interest, treble damages, attorneys fees and costs. On January 7, 2020, the United States District Court for the Southern District of Florida dismissed the claim by Havana Docks Corporation. We believe that the plaintiff plans to appeal the order. Although we believe we have meritorious defenses to the claims and intend to vigorously defend these matters, as of December 31, 2019, we are unable to reasonably estimate any potential contingent loss from these matters due to a lack of legal precedence.  Other  In the normal course of our business, various claims and lawsuits have been filed or are pending against us. Most of these claims and lawsuits are covered by insurance and, accordingly, the maximum amount of our liability is typically limited to our deductible amount. Nonetheless, the ultimate outcome of these claims and lawsuits that are not covered by insurance cannot be determined at this time. We have evaluated our overall exposure with respect to all of our threatened and pending litigation and, to the extent required, we have accrued amounts for all estimable probable losses associated with our deemed exposure. We are currently unable to estimate any other potential contingent losses beyond those accrued, as discovery is not complete nor is adequate information available to estimate such range of loss or potential recovery. However, based on our current knowledge, we do not believe that the aggregate amount or range of reasonably possible losses with respect to these matters will be material to our consolidated results of operations, financial condition or cash flows. We intend to vigorously defend our legal position on all claims and, to the extent necessary, seek recovery.