边境附近集结的军队看起来准备在未来几天内入侵。

Concentrations of troops near the border look set to ___invade within the next few days.

希特勒入侵了法国。

Hitler ___invaded France.

1939年，德国入侵波兰，从而引发了第二次世界大战。

In 1939, Germany ___invaded Poland, starting World War II.