Steadfast-Defender A Romanian soldier mans a gun mount while conducting reconnaissance training during Exercise Steadfast-Defender 2021 in Romania. Steadfast-Defender 2021 is a NATO-led exercise involving more than 9,000 troops from more than 20 NATO ally nations and partners. The objective is to ensure that NATO forces are trained, able to operate together, and are ready to respond to any threat from any direction. SHARE: Download: Full Size (0.12 MB) Credit: OR-7 Pia Dunkel, NATO - Supreme Headquarters Allied Powers Europe VIRIN: 210521-A-PD249-0246C.JPG Photo Gallery