Estonia has been "seriously" discussing sending troops to Ukraine in roles positioned away from the front lines, per a national security official. Madis Roll, national security advisor to Estonia's president, told military news outlet Breaking Defense that his country's leaders were assessing the viability of sending Estonian soldiers to "rear" roles that wouldn't see direct combat in Ukraine. Such a move would help relieve Ukraine's manpower crunch and allow it to send more soldiers to the front lines. And while Estonia, a North Atlantic Treaty Organization country, prefers to act together with the alliance's major members, it's also not closed...