Possible Clues:

• Org. with a phonetic alphabet
• Peacekeeping grp. since 1949
• Partnership for Peace grp.
• Partnership for Peace gp.
• Military alliance gp. since 1949
• Intl. alliance with a phonetic alphabet
• Allied org.
• Partnership for Peace international gp
• Jaap de Hoop Scheffer's org.
• Intl. peacekeeping group