BERLIN—The Group of Seven rich democracies ended their summit with an agreement to discuss a batch of new sanctions against Russia, but the gathering underlined the limits of using economic tools to punish Russia four months after its invasion of Ukraine.
While weapons deliveries have made an immediate difference on the battlefield and Ukraine has been clamoring for more equipment to repel Moscow’s forces, sanctions have proven slow to take effect, some of them have backfired against the West, and new ones have so far been too complex to deploy quickly.
