President Joe Biden's national security advisor Jake Sullivan describes Finland and Sweden's applications for NATO membership as a "watershed moment in European security" and says the two countries are "clear cut" in meeting the alliance's terms to be accepted. During a White House briefing, Sullivan also discusses Biden's upcoming trip to South Korea and Japan, saying the US military is prepared to "make both short and longer term adjustments" with regard to any nuclear threat from North Korea. [COMPLETES VIDI32AE8ZQ_EN, VIDI32AE98B_EN, VIDI32AE92N_EN] IMAGES AND SOUNDBITES