WARSAW, Poland — Polish Prime Minister Mateusz Morawiecki has announced his country is considering to supply an undisclosed number of Leopard 2 tanks to Ukraine to support its neighbor’s combat against the Russian invasion. However, the transfer must be part of a larger effort by a group of allies, he said. “Together with [Polish] president [Andrzej Duda], we are holding talks which would lead towards building a broader coalition of states that could supply such heavy, modern gear” to Ukraine,