The United States announced a $2 billion dollar aid package to Ukraine as Defense Secretary Lloyd Austin vowed that the US would stand by Ukraine “for as long as it takes.”

The security package, which CNN reported Thursday, includes more rounds for the HIMARS rocket launchers, more artillery ammunition, as well as different drones and counter-drone equipment. Russia has used Iranian drones to target Ukrainian civilian infrastructure, cutting off power to different parts of the country at times.

Unlike drawdown packages which pull military equipment directly from US stocks, this aid falls under the Ukraine Security Assistance Initiative (USAI), which contracts with industry to procure the equipment. The aid does not arrive in Ukraine as quickly, but it is part of a longer-term commitment to continue providing Ukraine with lethal and non-lethal supplies.

As the war hits its one-year mark, Austin called Russia’s invasion “the most urgent danger to European security since the end of the World War II.”Austin acknowledged the challenges ahead for Ukraine in the face of frequent Russian bombardments, but he vowed that the US and a coalition of allies under the Ukraine Defense Contact Group would continue to provide Kyiv the tools and weapons it needs for the war.

Difficult times may lie ahead, but let us remain clear-eyed about what is at stake in Ukraine. And let us remain united in purpose and in action—and steadfast in our commitment to ensure that a world of rules and rights is not replaced by one of tyranny and turmoil,” said Austin in a statement Friday.

/CNN