By Tom Balmforth KYIV (Reuters) - Billions of dollars in new Western military aid, including infantry fighting vehicles - though no German tanks - will gird Ukraine for counterattacks to foil Moscow's efforts to revive its faltering invasion. But Kyiv needs other weapons systems to win decisively and, while Russia is readying for a protracted war, it is unclear if defence production - in Europe at least - can keep up military aid at a high level, military analysts said. The United States and Finland announced new packages of $2.5 billion and 400 million euros (some $430 million)in military aid...