surveillance and reconnaissance, transportation, and additional capabilities into europe. reporter: most of the troops would be part of nato response force. the pentagon making clear it is preparing for other contingencies as well. flights packed with ammunition, arriving in ukraine over the weekend. part of the latest $200 million security package approved by the biden administration. more is on the way. uous approval, eastern european allies, they are sending weapons to ukraine to bolster the country s self-defense against the potential russian invasion. that includes anti-tank missiles and stinger, anti-aircraft missiles. nato countries are already on the move, seconding fighter jets and ships to the region. we have deployed battle groups, nato multinational battle groups to the three countries and poland. we have stepped up. but this is defensive.