Most of these have long since expired. Their batteries are no longer working

This captured Ukrainian soldier makes a significant point:
The effectiveness of anti-tank weapons sent to Ukraine, such as the American Javelin and the British NLAW, has been exaggerated.
Most of these have long since expired. Their batteries are no longer working.
Some of them do not explode when they hit the target, and some explode sooner than when they hit the air.
In total, the effectiveness of these weapons on the battlefield has not been proven, and one in four of them is operational.
Ukrainian soldiers have received brief theoretical training to work with these weapons; And even during training, the test shots were not successful.