President Joe Biden‘s administration is maintaining its policy of restricting Ukraine’s use of U.S.-provided weapons to hit military targets deep within Russian territory despite growing pressure to lift those rules.

Ukrainian leaders were among the chorus of officials who have pushed for any NATO ally who has put restrictions on their use of weapons to remove them during this week’s 75-year anniversary NATO summit that took place in Washington, D.C., though the attention is on the United States, given the large share of military aid it provides.