"Biden's Unity Promise Tested at NATO Summit, Amid Controversial Royal Protocol Breach"

President Biden's promise to unite NATO will be tested as trans-Atlantic leaders gather in Europe to discuss deterring Russia from Ukraine. The summit will address differences over military spending, alliance expansion, and leadership. Biden's stance on Ukraine's NATO membership is cautious, stating that it is premature and that certain qualifications need to be met. The outcome of the summit could have significant implications for Biden's legacy and the credibility of the alliance.