Sentence examples for proved a formidable challenge from inspiring English sources

It said while some progress had been made in passing laws against sexual and gender-based violence, and improving women's security, "conflict-related sexual violence as a deliberate strategy in areas of conflict still occurs with impunity" and had proved a "formidable challenge" for peacekeeping missions.

The development of a broadly protective meningococcal B vaccine is proving a formidable challenge.

Nature provided a formidable challenge.

Merion has proved a formidable foe.

Here, again, Brundage proved a formidable, if temporary, obstacle.

The sea ice has proved a formidable obstacle so far.

But tracking down Mr. Iorio proved a formidable task.

The malarial parasite has proved a formidable enemy.

The piste, which was icy and bumpy near the top, proved to be a formidable challenge and featured four daunting jumps, some launching the racers more than 165 feet through the air.

The piste, which was icy and bumpy near the top, proved to be a formidable challenge and featured four daunting jumps, some launching the racers more than 50 meters, or 165 feet, through the air.

This strong partnership is already proving to be a formidable challenge to the U.S. supported coalition of Egypt, Saudi Arabia, Jordan, and indirectly Israel.