Russia’s relationship with Egypt appears to be warming, though it remains unclear just how far Moscow and Cairo are prepared to go and at what price. Officials in Washington should follow this closely.

Among the most recent developments is a small but significant natural gas export deal between Russia’s Gazprom and Egypt’s EGAS, under which Russia’s state-controlled gas firm will deliver seven shipments of gas to Egypt in 2015. An Egyptian press report on the deal stresses not only that EGAS obtained a “favorable rate” for the gas, but that the agreement will allow for “grace periods” to pay for it. Taking place in parallel with Gazprom’s dramatic price increases for its exports to Ukraine — and Russian President Vladimir Putin’s insistence that Kiev pay in advance — the modest sale looks overtly political. EGAS officials note that they turned to Gazprom after negotiations with an Algerian firm collapsed due to strong European Union interest in increasing imports from the country to reduce gas dependence on Russia. Egypt’s Ministry of Petroleum appears to hope that this will allow the country to import Russian gas “at a rate that is lower than market prices” beyond 2015.

A bigger deal in the future is certainly possible; Moscow has a long history of below-market energy exports to its special friends, including its former Warsaw Pact allies — now paying market rates as NATO members — and, of course, Ukraine at various times. Of course, the Soviet Union took a similar approach to arms exports, which it often provided with long-term financing. In 1987, Soviet officials rescheduled some $3 billion in Egyptian debt for former Egyptian leader Gamal Abdel Nasser’s weapons imports during the 1960s. A later arrangement in 1994 reportedly settled all outstanding Egyptian debts.

Egypt’s gas purchase comes amid warm rhetoric from top officials on both sides, including Putin’s endorsement of Abdel Fattah al-Sisi’s presidential campaign earlier this year — in a meeting in Russia during Sisi’s first foreign trip after taking power — and a pointed statement by Egyptian Foreign Minister Nabil Fahmy in Washington that Cairo will “seek to nurture and leverage” its ties to Moscow, while insisting that this would not come at America’s expense. Meanwhile, Egypt opted not to vote on a United Nations General Assembly resolution calling on all UN member states to refrain from recognizing Russia’s annexation of Crimea in an apparent effort to avoid US pressure to support the measure, which was implicitly critical of Moscow.