front-line state

front-line state ▶plural noun a country that borders on an area troubled by a war or other crisis: Germany will no longer be a front-line state with little strategic depth.

front-line states

front-line states ▶plural noun those countries bordering on an area troubled by a war or other crisis.

front-line

fr ò nt-l í ne 形容詞 〖名詞 の前で 〗(戦闘などの )最前線の ; (仕事 活動などの )第一線の .