Which of the following directly caused France, Germany, and Russia to get involved in World War I?(1 point)Responsesunrestricted submarine warfareunrestricted submarine warfarefood shortagesfood shortagesthe alliance systemthe alliance systemeconomic problems

Answer 1

The direct cause that led to the involvement of France, Germany, and Russia in World War I was the alliance system. The complex web of alliances meant that when one country was drawn into conflict, its allies were also compelled to join, escalating the situation into a full-scale war.