NATO has proposed a $100B five-year fund to aid Ukraine, but all members must reach agreement on the measure.

According to Bloomberg, NATO Secretary General Jens Stoltenberg proposes establishing a fund of allied contributions worth $100B over five years for Ukraine as part of a package that alliance leaders will sign off on when they gather in Washington in July.

According to people familiar with the discussions, allies are still discussing Stoltenberg’s proposal and any accounting mechanics, including whether to factor in bilateral aid to Ukraine into the overall sum.

According to individuals who spoke anonymously, the proposal, which needs approval from the North Atlantic Treaty Organization’s 32 members, will likely be altered before leaders agree on a final version. NATO has not provided any additional information.

If the NATO allies back Stoltenberg’s proposal, the move to take a more active role in providing aid for Ukraine would mark a paradigm shift for the military alliance, which has previously distanced itself from those efforts to avoid being potentially drawn into a wider war with Russia.