"Our message remains clear: We are prepared for dialogue, and we have made proposals, but the key to a better relationship lies clearly with Moscow," German Foreign Minister Heiko Maas told reporters before a video call with his NATO counterparts.
"We are there to prevent conflict and war. But the best way of doing that is to send a clear message to any potential adversary that if one ally is attacked, the whole alliance will be there," Stoltenberg said.
"Allies are consulting on the forcible landing of the Ryanair plane by Belarus and ambassadors will discuss it tomorrow," a NATO official told AFP Monday.
Palestinian militants have fired around 3,350 rockets toward Israel, which has responded with relentless air strikes it says are targeting top Hamas commanders and military infrastructure.
European allies are pushing the United States to delay its withdrawal from Afghanistan, in order to give NATO more time and support to leave, according to American officials.
Officials from the United States have mentioned that their departure could be delayed by two weeks or longer, in an effort to accomodate their allies' requests.
Biden is expected to formally recognize the massacre of Armenians by the Ottoman Empire during World War One as an act of genocide, but the statement made no mention of the issue.
Russia retaliated by ordering out 20 Czech diplomats -- sparking an angry ultimatum from Prague for Moscow to let them return or face further expulsions from its embassy.
"Mr President, as you said last year in your April 24 statement, 'Silence is complicity.' The shameful silence of the United States government on the historic fact of the Armenian Genocide has gone on for too long, and it must end," the letter said.
Russia will soon have more than 120,000 troops on Ukraine's border, Ukrainian Foreign Minister Dmytro Kuleba said on Tuesday, calling for new Western economic sanctions on Moscow.
Kyiv, Washington and NATO have been alarmed by the large build-up of Russian troops near Ukraine and in Crimea, the peninsula that Moscow annexed from Ukraine in 2014.
US President Joe Biden announced Wednesday the unconditional withdrawal of US troops from Afghanistan, naming September 11 as the deadline by which the last soldiers will have finally departed. The pullout will begin on May 1.