What's on the agenda as Biden heads to NATO summit: 5 essential reads as Western alliance talks expansion, Ukraine

A flagging alliance? Far from it. Yves Herman/AFP via Getty Images)

Leaders of the nations comprising NATO will meet for a two-day summit beginning on July 11, 2023.

The gathering in the Lithuanian capital, Vilnius, comes at a pivotal moment for the Western security alliance – it is seeking to expand membership and confront challenges ranging from the ongoing war in Ukraine to a perceived growing military threat from China.